SCFA or “Shortcodes for Font Awesome” is a WordPress 5.7 compatible plugin that allows you to insert Font Awesome icons into your website content by using shortcodes. The official WordPress slug for the plugin is shortcodes-for-font-awesome.
The plugin is written by Joaquim Homrighausen. Donations are welcome if you find this plugin to be useful, as are requests for improvements.
Commercial support is available via WebbPlatsen i Sverige AB.
You can download the full source code on Github and read more about it on code.webbplatsen.net
SCFA is also on wordpress.org