We introduced font awesome 5 more than a year ago and have developed quite a few features that allow users to select font awesome icons.
The group flair
The badge admin screen
Such as: Tag icons component
As it stands picking a an icon is really tricky.
You need to head to https://fontawesome.com/icons?d=gallery&m=free (free is critical cause we only ship with those) and then search for the right icon. Then you need to know when to add
far or nothing.
It can be quite confusing for a Discourse admin.
It would be nice to have a picker like the emoji picker here that is reusable in the all the spots we use now use for font awesome icons and extends to other spots where font awesome can be used in future.