Hmm. Considering #Pleroma again for a music related alt. Maybe just #selfhost on my old cubieboard that's not good for Kodi (until the crowdfunded gpu drivers are merged around 1Q2019... living in the future).
The alt is currently on #gnusocial but I picked what I thought was a reliable server back in February but it's turned out to be super slow and throwing 502s all the time and also the Android clients make me sad and the web UI is broken in Firefox mobile. That's a lot of aggravation.