diff --git a/app/soapbox/actions/accounts.js b/app/soapbox/actions/accounts.js
index 1fa430d71..5447afa9c 100644
--- a/app/soapbox/actions/accounts.js
+++ b/app/soapbox/actions/accounts.js
@@ -1044,10 +1044,10 @@ export function fetchPinnedAccountsFail(id, error) {
   };
 }
 
-export function accountSearch(params, cancelToken) {
+export function accountSearch(params, signal) {
   return (dispatch, getState) => {
     dispatch({ type: ACCOUNT_SEARCH_REQUEST, params });
-    return api(getState).get('/api/v1/accounts/search', { params, cancelToken }).then(({ data: accounts }) => {
+    return api(getState).get('/api/v1/accounts/search', { params, signal }).then(({ data: accounts }) => {
       dispatch(importFetchedAccounts(accounts));
       dispatch({ type: ACCOUNT_SEARCH_SUCCESS, accounts });
       return accounts;
diff --git a/app/soapbox/components/account_search.tsx b/app/soapbox/components/account_search.tsx
index 961a4b2ef..3acda1152 100644
--- a/app/soapbox/components/account_search.tsx
+++ b/app/soapbox/components/account_search.tsx
@@ -14,6 +14,8 @@ interface IAccountSearch {
   onSelected: (accountId: string) => void,
   /** Override the default placeholder of the input. */
   placeholder?: string,
+  /** Position of results relative to the input. */
+  resultsPosition?: 'above' | 'below',
 }
 
 /** Input to search for accounts. */
diff --git a/app/soapbox/components/autosuggest_account_input.js b/app/soapbox/components/autosuggest_account_input.js
deleted file mode 100644
index fd93f52a9..000000000
--- a/app/soapbox/components/autosuggest_account_input.js
+++ /dev/null
@@ -1,95 +0,0 @@
-import { CancelToken } from 'axios';
-import { OrderedSet as ImmutableOrderedSet } from 'immutable';
-import { throttle } from 'lodash';
-import PropTypes from 'prop-types';
-import React from 'react';
-import ImmutablePureComponent from 'react-immutable-pure-component';
-import { connect } from 'react-redux';
-
-import { accountSearch } from 'soapbox/actions/accounts';
-
-import AutosuggestInput from './autosuggest_input';
-
-const noOp = () => {};
-
-export default @connect()
-class AutosuggestAccountInput extends ImmutablePureComponent {
-
-  static propTypes = {
-    dispatch: PropTypes.func.isRequired,
-    onChange: PropTypes.func.isRequired,
-    onSelected: PropTypes.func.isRequired,
-    value: PropTypes.string.isRequired,
-    limit: PropTypes.number.isRequired,
-  }
-
-  static defaultProps = {
-    value: '',
-    limit: 4,
-  }
-
-  state = {
-    accountIds: ImmutableOrderedSet(),
-  }
-
-  source = CancelToken.source();
-
-  refreshCancelToken = () => {
-    this.source.cancel();
-    this.source = CancelToken.source();
-    return this.source;
-  }
-
-  clearResults = () => {
-    this.setState({ accountIds: ImmutableOrderedSet() });
-  }
-
-  handleAccountSearch = throttle(q => {
-    const { dispatch, limit } = this.props;
-    const source = this.refreshCancelToken();
-
-    const params = { q, limit, resolve: false };
-
-    dispatch(accountSearch(params, source.token))
-      .then(accounts => {
-        const accountIds = accounts.map(account => account.id);
-        this.setState({ accountIds: ImmutableOrderedSet(accountIds) });
-      })
-      .catch(noOp);
-
-  }, 900, { leading: true, trailing: true })
-
-  handleChange = e => {
-    this.handleAccountSearch(e.target.value);
-    this.props.onChange(e);
-  }
-
-  handleSelected = (tokenStart, lastToken, accountId) => {
-    this.props.onSelected(accountId);
-  }
-
-  componentDidUpdate(prevProps) {
-    if (this.props.value === '' && prevProps.value !== '') {
-      this.clearResults();
-    }
-  }
-
-  render() {
-    const { intl, value, onChange, ...rest } = this.props;
-    const { accountIds } = this.state;
-
-    return (
-      <AutosuggestInput
-        value={value}
-        onChange={this.handleChange}
-        suggestions={accountIds.toList()}
-        onSuggestionsFetchRequested={noOp}
-        onSuggestionsClearRequested={noOp}
-        onSuggestionSelected={this.handleSelected}
-        searchTokens={[]}
-        {...rest}
-      />
-    );
-  }
-
-}
diff --git a/app/soapbox/components/autosuggest_account_input.tsx b/app/soapbox/components/autosuggest_account_input.tsx
new file mode 100644
index 000000000..e103d7722
--- /dev/null
+++ b/app/soapbox/components/autosuggest_account_input.tsx
@@ -0,0 +1,88 @@
+import { OrderedSet as ImmutableOrderedSet } from 'immutable';
+import { throttle } from 'lodash';
+import React, { useState, useRef, useCallback, useEffect } from 'react';
+
+import { accountSearch } from 'soapbox/actions/accounts';
+import AutosuggestInput, { AutoSuggestion } from 'soapbox/components/autosuggest_input';
+import { useAppDispatch } from 'soapbox/hooks';
+
+import type { Menu } from 'soapbox/components/dropdown_menu';
+
+const noOp = () => {};
+
+interface IAutosuggestAccountInput {
+  onChange: React.ChangeEventHandler<HTMLInputElement>,
+  onSelected: (accountId: string) => void,
+  value: string,
+  limit?: number,
+  className?: string,
+  autoSelect?: boolean,
+  menu?: Menu,
+  onKeyDown?: React.KeyboardEventHandler,
+}
+
+const AutosuggestAccountInput: React.FC<IAutosuggestAccountInput> = ({
+  onChange,
+  onSelected,
+  value = '',
+  limit = 4,
+  ...rest
+}) => {
+  const dispatch = useAppDispatch();
+  const [accountIds, setAccountIds] = useState(ImmutableOrderedSet<string>());
+  const controller = useRef(new AbortController());
+
+  const refreshCancelToken = () => {
+    controller.current.abort();
+    controller.current = new AbortController();
+  };
+
+  const clearResults = () => {
+    setAccountIds(ImmutableOrderedSet());
+  };
+
+  const handleAccountSearch = useCallback(throttle(q => {
+    const params = { q, limit, resolve: false };
+
+    dispatch(accountSearch(params, controller.current.signal))
+      .then((accounts: { id: string }[]) => {
+        const accountIds = accounts.map(account => account.id);
+        setAccountIds(ImmutableOrderedSet(accountIds));
+      })
+      .catch(noOp);
+
+  }, 900, { leading: true, trailing: true }), [limit]);
+
+  const handleChange: React.ChangeEventHandler<HTMLInputElement> = e => {
+    refreshCancelToken();
+    handleAccountSearch(e.target.value);
+    onChange(e);
+  };
+
+  const handleSelected = (_tokenStart: number, _lastToken: string | null, suggestion: AutoSuggestion) => {
+    if (typeof suggestion === 'string' && suggestion[0] !== '#') {
+      onSelected(suggestion);
+    }
+  };
+
+  useEffect(() => {
+    if (value === '') {
+      clearResults();
+    }
+  }, [value]);
+
+  return (
+    <AutosuggestInput
+      value={value}
+      onChange={handleChange}
+      suggestions={accountIds.toList()}
+      onSuggestionsFetchRequested={noOp}
+      onSuggestionsClearRequested={noOp}
+      onSuggestionSelected={handleSelected}
+      searchTokens={[]}
+      {...rest}
+    />
+  );
+};
+
+export default AutosuggestAccountInput;
diff --git a/app/soapbox/components/autosuggest_emoji.js b/app/soapbox/components/autosuggest_emoji.js
deleted file mode 100644
index e16d2a2c5..000000000
--- a/app/soapbox/components/autosuggest_emoji.js
+++ /dev/null
@@ -1,43 +0,0 @@
-import PropTypes from 'prop-types';
-import React from 'react';
-
-import { joinPublicPath } from 'soapbox/utils/static';
-
-import unicodeMapping from '../features/emoji/emoji_unicode_mapping_light';
-
-export default class AutosuggestEmoji extends React.PureComponent {
-
-  static propTypes = {
-    emoji: PropTypes.object.isRequired,
-  };
-
-  render() {
-    const { emoji } = this.props;
-    let url;
-
-    if (emoji.custom) {
-      url = emoji.imageUrl;
-    } else {
-      const mapping = unicodeMapping[emoji.native] || unicodeMapping[emoji.native.replace(/\uFE0F$/, '')];
-
-      if (!mapping) {
-        return null;
-      }
-
-      url = joinPublicPath(`packs/emoji/${mapping.filename}.svg`);
-    }
-
-    return (
-      <div className='autosuggest-emoji' data-testid='emoji'>
-        <img
-          className='emojione'
-          src={url}
-          alt={emoji.native || emoji.colons}
-        />
-
-        {emoji.colons}
-      </div>
-    );
-  }
-
-}
diff --git a/app/soapbox/components/autosuggest_emoji.tsx b/app/soapbox/components/autosuggest_emoji.tsx
new file mode 100644
index 000000000..22979d454
--- /dev/null
+++ b/app/soapbox/components/autosuggest_emoji.tsx
@@ -0,0 +1,51 @@
+import React from 'react';
+
+import unicodeMapping from 'soapbox/features/emoji/emoji_unicode_mapping_light';
+import { joinPublicPath } from 'soapbox/utils/static';
+
+export type Emoji = {
+  id: string,
+  custom: boolean,
+  imageUrl: string,
+  native: string,
+  colons: string,
+}
+
+type UnicodeMapping = {
+  filename: string,
+}
+
+interface IAutosuggestEmoji {
+  emoji: Emoji,
+}
+
+const AutosuggestEmoji: React.FC<IAutosuggestEmoji> = ({ emoji }) => {
+  let url;
+
+  if (emoji.custom) {
+    url = emoji.imageUrl;
+  } else {
+    // @ts-ignore
+    const mapping: UnicodeMapping = unicodeMapping[emoji.native] || unicodeMapping[emoji.native.replace(/\uFE0F$/, '')];
+
+    if (!mapping) {
+      return null;
+    }
+
+    url = joinPublicPath(`packs/emoji/${mapping.filename}.svg`);
+  }
+
+  return (
+    <div className='autosuggest-emoji' data-testid='emoji'>
+      <img
+        className='emojione'
+        src={url}
+        alt={emoji.native || emoji.colons}
+      />
+
+      {emoji.colons}
+    </div>
+  );
+};
+
+export default AutosuggestEmoji;
diff --git a/app/soapbox/components/autosuggest_input.js b/app/soapbox/components/autosuggest_input.tsx
similarity index 68%
rename from app/soapbox/components/autosuggest_input.js
rename to app/soapbox/components/autosuggest_input.tsx
index 7fd4a23ed..cac979337 100644
--- a/app/soapbox/components/autosuggest_input.js
+++ b/app/soapbox/components/autosuggest_input.tsx
@@ -1,22 +1,27 @@
 import classNames from 'classnames';
 import { List as ImmutableList } from 'immutable';
-import PropTypes from 'prop-types';
 import React from 'react';
-import ImmutablePropTypes from 'react-immutable-proptypes';
 import ImmutablePureComponent from 'react-immutable-pure-component';
 
+import AutosuggestEmoji, { Emoji } from 'soapbox/components/autosuggest_emoji';
 import Icon from 'soapbox/components/icon';
+import AutosuggestAccount from 'soapbox/features/compose/components/autosuggest_account';
+import { isRtl } from 'soapbox/rtl';
 
-import AutosuggestAccount from '../features/compose/components/autosuggest_account';
-import { isRtl } from '../rtl';
+import type { Menu, MenuItem } from 'soapbox/components/dropdown_menu';
 
-import AutosuggestEmoji from './autosuggest_emoji';
+type CursorMatch = [
+  tokenStart: number | null,
+  token: string | null,
+];
 
-const textAtCursorMatchesToken = (str, caretPosition, searchTokens) => {
-  let word;
+export type AutoSuggestion = string | Emoji;
 
-  const left  = str.slice(0, caretPosition).search(/\S+$/);
-  const right = str.slice(caretPosition).search(/\s/);
+const textAtCursorMatchesToken = (str: string, caretPosition: number, searchTokens: string[]): CursorMatch => {
+  let word: string;
+
+  const left:  number = str.slice(0, caretPosition).search(/\S+$/);
+  const right: number = str.slice(caretPosition).search(/\s/);
 
   if (right < 0) {
     word = str.slice(left);
@@ -37,32 +42,31 @@ const textAtCursorMatchesToken = (str, caretPosition, searchTokens) => {
   }
 };
 
-export default class AutosuggestInput extends ImmutablePureComponent {
+interface IAutosuggestInput extends Pick<React.HTMLAttributes<HTMLInputElement>, 'onChange' | 'onKeyUp' | 'onKeyDown'> {
+  value: string,
+  suggestions: ImmutableList<any>,
+  disabled?: boolean,
+  placeholder?: string,
+  onSuggestionSelected: (tokenStart: number, lastToken: string | null, suggestion: AutoSuggestion) => void,
+  onSuggestionsClearRequested: () => void,
+  onSuggestionsFetchRequested: (token: string) => void,
+  autoFocus: boolean,
+  autoSelect: boolean,
+  className?: string,
+  id?: string,
+  searchTokens: string[],
+  maxLength?: number,
+  menu?: Menu,
+  resultsPosition: string,
+}
 
-  static propTypes = {
-    value: PropTypes.string,
-    suggestions: ImmutablePropTypes.list,
-    disabled: PropTypes.bool,
-    placeholder: PropTypes.string,
-    onSuggestionSelected: PropTypes.func.isRequired,
-    onSuggestionsClearRequested: PropTypes.func.isRequired,
-    onSuggestionsFetchRequested: PropTypes.func.isRequired,
-    onChange: PropTypes.func.isRequired,
-    onKeyUp: PropTypes.func,
-    onKeyDown: PropTypes.func,
-    autoFocus: PropTypes.bool,
-    autoSelect: PropTypes.bool,
-    className: PropTypes.string,
-    id: PropTypes.string,
-    searchTokens: PropTypes.arrayOf(PropTypes.string),
-    maxLength: PropTypes.number,
-    menu: PropTypes.arrayOf(PropTypes.object),
-  };
+export default class AutosuggestInput extends ImmutablePureComponent<IAutosuggestInput> {
 
   static defaultProps = {
     autoFocus: false,
     autoSelect: true,
     searchTokens: ImmutableList(['@', ':', '#']),
+    resultsPosition: 'below',
   };
 
   getFirstIndex = () => {
@@ -77,8 +81,10 @@ export default class AutosuggestInput extends ImmutablePureComponent {
     tokenStart: 0,
   };
 
-  onChange = (e) => {
-    const [ tokenStart, token ] = textAtCursorMatchesToken(e.target.value, e.target.selectionStart, this.props.searchTokens);
+  input: HTMLInputElement | null = null;
+
+  onChange: React.ChangeEventHandler<HTMLInputElement> = (e) => {
+    const [tokenStart, token] = textAtCursorMatchesToken(e.target.value, e.target.selectionStart || 0, this.props.searchTokens);
 
     if (token !== null && this.state.lastToken !== token) {
       this.setState({ lastToken: token, selectedSuggestion: 0, tokenStart });
@@ -88,10 +94,12 @@ export default class AutosuggestInput extends ImmutablePureComponent {
       this.props.onSuggestionsClearRequested();
     }
 
-    this.props.onChange(e);
+    if (this.props.onChange) {
+      this.props.onChange(e);
+    }
   }
 
-  onKeyDown = (e) => {
+  onKeyDown: React.KeyboardEventHandler<HTMLInputElement> = (e) => {
     const { suggestions, menu, disabled } = this.props;
     const { selectedSuggestion, suggestionsHidden } = this.state;
     const firstIndex = this.getFirstIndex();
@@ -102,7 +110,7 @@ export default class AutosuggestInput extends ImmutablePureComponent {
       return;
     }
 
-    if (e.which === 229 || e.isComposing) {
+    if (e.which === 229) {
       // Ignore key events during text composition
       // e.key may be a name of the physical key even in this case (e.x. Safari / Chrome on Mac)
       return;
@@ -111,7 +119,7 @@ export default class AutosuggestInput extends ImmutablePureComponent {
     switch (e.key) {
       case 'Escape':
         if (suggestions.size === 0 || suggestionsHidden) {
-          document.querySelector('.ui').parentElement.focus();
+          document.querySelector('.ui')?.parentElement?.focus();
         } else {
           e.preventDefault();
           this.setState({ suggestionsHidden: true });
@@ -134,7 +142,7 @@ export default class AutosuggestInput extends ImmutablePureComponent {
         break;
       case 'Enter':
       case 'Tab':
-      // Select suggestion
+        // Select suggestion
         if (!suggestionsHidden && selectedSuggestion > -1 && (suggestions.size > 0 || menu)) {
           e.preventDefault();
           e.stopPropagation();
@@ -142,9 +150,9 @@ export default class AutosuggestInput extends ImmutablePureComponent {
 
           if (selectedSuggestion < suggestions.size) {
             this.props.onSuggestionSelected(this.state.tokenStart, this.state.lastToken, suggestions.get(selectedSuggestion));
-          } else {
+          } else if (menu) {
             const item = menu[selectedSuggestion - suggestions.size];
-            this.handleMenuItemAction(item);
+            this.handleMenuItemAction(item, e);
           }
         }
 
@@ -155,7 +163,9 @@ export default class AutosuggestInput extends ImmutablePureComponent {
       return;
     }
 
-    this.props.onKeyDown(e);
+    if (this.props.onKeyDown) {
+      this.props.onKeyDown(e);
+    }
   }
 
   onBlur = () => {
@@ -166,25 +176,26 @@ export default class AutosuggestInput extends ImmutablePureComponent {
     this.setState({ focused: true });
   }
 
-  onSuggestionClick = (e) => {
-    const suggestion = this.props.suggestions.get(e.currentTarget.getAttribute('data-index'));
-    e.preventDefault();
+  onSuggestionClick: React.MouseEventHandler = (e) => {
+    const index = Number(e.currentTarget?.getAttribute('data-index'));
+    const suggestion = this.props.suggestions.get(index);
     this.props.onSuggestionSelected(this.state.tokenStart, this.state.lastToken, suggestion);
-    this.input.focus();
+    this.input?.focus();
+    e.preventDefault();
   }
 
-  componentDidUpdate(prevProps, prevState) {
+  componentDidUpdate(prevProps: IAutosuggestInput, prevState: any) {
     const { suggestions } = this.props;
     if (suggestions !== prevProps.suggestions && suggestions.size > 0 && prevState.suggestionsHidden && prevState.focused) {
       this.setState({ suggestionsHidden: false });
     }
   }
 
-  setInput = (c) => {
+  setInput = (c: HTMLInputElement) => {
     this.input = c;
   }
 
-  renderSuggestion = (suggestion, i) => {
+  renderSuggestion = (suggestion: AutoSuggestion, i: number) => {
     const { selectedSuggestion } = this.state;
     let inner, key;
 
@@ -202,7 +213,7 @@ export default class AutosuggestInput extends ImmutablePureComponent {
     return (
       <div
         role='button'
-        tabIndex='0'
+        tabIndex={0}
         key={key}
         data-index={i}
         className={classNames({
@@ -216,15 +227,17 @@ export default class AutosuggestInput extends ImmutablePureComponent {
     );
   }
 
-  handleMenuItemAction = item => {
+  handleMenuItemAction = (item: MenuItem | null, e: React.MouseEvent | React.KeyboardEvent) => {
     this.onBlur();
-    item.action();
+    if (item?.action) {
+      item.action(e);
+    }
   }
 
-  handleMenuItemClick = item => {
+  handleMenuItemClick = (item: MenuItem | null): React.MouseEventHandler => {
     return e => {
       e.preventDefault();
-      this.handleMenuItemAction(item);
+      this.handleMenuItemAction(item, e);
     };
   }
 
@@ -241,23 +254,23 @@ export default class AutosuggestInput extends ImmutablePureComponent {
         className={classNames('flex items-center space-x-2 px-4 py-2.5 text-sm text-gray-700 dark:text-gray-400 cursor-pointer hover:bg-gray-100 dark:hover:bg-gray-700', { selected: suggestions.size - selectedSuggestion === i })}
         href='#'
         role='button'
-        tabIndex='0'
+        tabIndex={0}
         onMouseDown={this.handleMenuItemClick(item)}
         key={i}
       >
-        {item.icon && (
+        {item?.icon && (
           <Icon src={item.icon} />
         )}
 
-        <span>{item.text}</span>
+        <span>{item?.text}</span>
       </a>
     ));
   };
 
   render() {
-    const { value, suggestions, disabled, placeholder, onKeyUp, autoFocus, className, id, maxLength, menu } = this.props;
+    const { value, suggestions, disabled, placeholder, onKeyUp, autoFocus, className, id, maxLength, menu, resultsPosition } = this.props;
     const { suggestionsHidden } = this.state;
-    const style = { direction: 'ltr' };
+    const style: React.CSSProperties = { direction: 'ltr' };
 
     const visible = !suggestionsHidden && (!suggestions.isEmpty() || (menu && value));
 
@@ -273,8 +286,7 @@ export default class AutosuggestInput extends ImmutablePureComponent {
           type='text'
           className={classNames({
             'block w-full sm:text-sm dark:bg-slate-800 dark:text-white dark:placeholder:text-gray-500 focus:ring-indigo-500 focus:border-indigo-500': true,
-            [className]: typeof className !== 'undefined',
-          })}
+          }, className)}
           ref={this.setInput}
           disabled={disabled}
           placeholder={placeholder}
@@ -293,7 +305,9 @@ export default class AutosuggestInput extends ImmutablePureComponent {
         />
 
         <div className={classNames({
-          'absolute top-full w-full z-50 shadow bg-white dark:bg-slate-800 rounded-lg py-1': true,
+          'absolute w-full z-50 shadow bg-white dark:bg-slate-800 rounded-lg py-1': true,
+          'top-full': resultsPosition === 'below',
+          'bottom-full': resultsPosition === 'above',
           hidden: !visible,
           block: visible,
         })}
diff --git a/app/soapbox/features/chats/components/chat_panes.js b/app/soapbox/features/chats/components/chat_panes.js
index 8aab35825..7232af6e5 100644
--- a/app/soapbox/features/chats/components/chat_panes.js
+++ b/app/soapbox/features/chats/components/chat_panes.js
@@ -102,6 +102,7 @@ class ChatPanes extends ImmutablePureComponent {
               <AccountSearch
                 placeholder={intl.formatMessage(messages.searchPlaceholder)}
                 onSelected={this.handleSuggestion}
+                resultsPosition='above'
               />
             </>
           )}
diff --git a/app/soapbox/features/compose/components/search.tsx b/app/soapbox/features/compose/components/search.tsx
index 401001fc9..d68f82bc2 100644
--- a/app/soapbox/features/compose/components/search.tsx
+++ b/app/soapbox/features/compose/components/search.tsx
@@ -21,7 +21,7 @@ const messages = defineMessages({
   action: { id: 'search.action', defaultMessage: 'Search for “{query}”' },
 });
 
-function redirectToAccount(accountId: number, routerHistory: any) {
+function redirectToAccount(accountId: string, routerHistory: any) {
   return (_dispatch: any, getState: () => ImmutableMap<string, any>) => {
     const acct = getState().getIn(['accounts', accountId, 'acct']);
 
@@ -97,7 +97,7 @@ const Search = (props: ISearch) => {
     dispatch(showSearch());
   };
 
-  const handleSelected = (accountId: number) => {
+  const handleSelected = (accountId: string) => {
     dispatch(clearSearch());
     dispatch(redirectToAccount(accountId, history));
   };
diff --git a/app/styles/basics.scss b/app/styles/basics.scss
index 33257bf2a..987a6d58d 100644
--- a/app/styles/basics.scss
+++ b/app/styles/basics.scss
@@ -100,18 +100,7 @@ noscript {
 }
 
 .floating-link {
-  width: 100%;
-  height: 100%;
-  top: 0;
-  right: 0;
-  bottom: 0;
-  left: 0;
-  position: absolute;
-  z-index: 201;
-  background: transparent;
-  border: 0;
-  margin: 0;
-  padding: 0;
+  @apply w-full h-full inset-0 absolute z-10;
 }
 
 .greentext {