Might not be perfectly up to date, but certainly a good starting place.
included servers:
- Airsonic
- Airsonic-advanced
- gonic
- Ampache
- Jellyfin
- Funkwhale
- Lightweight Music Server
- Logitech Media Server
- mStream
- Navidrome
- Plex
- Polaris
- Roon
included clients:



Uh, Roon is not FOSS. I don’t think it should be there.
Logitech Media Server hasn’t existed under that name for about 15 years. However, it is still being maintained and improved under the name Lyrion Music Server, after the original code/design was freed and released, IUUC.
Gelli was nice but is also no longer active.
Their chart covers licensing and lists roon as closed source. I don’t think this is intended to be one of the “awesome” FOSS lists