I also use Finamp for audio streaming (or local, downloaded playback). It's a good app, but still lacking a lot of features other audio players have, like rearranging the play queue. I'd suggest also trying [Gelli](https://github.com/dkanada/gelli), which seems to be a more mature app for music playback.

Also check out funkwhale!

Airsonic is also nice. I was a long time (paying) Subsonic user, but got a bit fed up with it and migrated.

I would like to look up Polaris but my searching skills seem to be lacking. Might you have a web site for it that you could share?

I have close to 3 tb of music, storing it all offsite is prohibitively expensive at the hundreds of dollars per month level, so that service is not good for me.

I use navidrome with bobob and it works great!

bonob acts as a media libary bridge so sonos can use navidrome as a media library (instead of having to use a janky old version of smb auth that sonos requires)

i use navidrome but no folder view, so mixtapes with many artist is counted like many albums