Fork Awesome is a Libre font project which has hundreds of useful icons that anyone can use. You can follow at:
The project's website is at https://forkaweso.me
But I am not a developer, so I don't actually know this first hand. Apologies if I've got this wrong!
This is a brand new server run by the main developers of the project as a spin-off of mastodon.social It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!