I'm using Symfonium. Originally got it because it allows pulling from subsonic, plex and jellyfin libraries simultaneously.
After switching all my stuff over to navidrome, rather than having it split between plex and navidrome, I kept it because I paid a couple bucks for it and really like the customizability
On my PC I use sonixd. No particular reason for that one except it was probably the first one I found, is cross platform and also looks quite good