Page that displays a list of tags.

Here's one I done: https://tcbartinc.org.au/artists/

• http://snippetcentral.com/display-all-tags-on-one-page/
• https://www.wpexplorer.com/list-wordpress-tags/

You make a PHP file with a little code snippet in it, copy it into you theme's base directory, then in Wordpress you select the appropriate template from the 'Page Attributes' area on the page editing… page.