OwnCast is a free open source self-hostable streaming platform, basically a libre alternative to Twitch, and also currently testing Fediverse support too!
There's more info about it on its website at https://owncast.online
The project is looking for help running an OwnCast dedicated Fediverse account. (There is currently a bot at @owncast but this just provides automated posts about streamers.)
If you think you can help with this, or want to be involved with the project in any other way, get in touch with OwnCast here:
The project lead is on the Fediverse at @gabek