https://github.com/avdept/JellyBoxPlayer
I haven't tried jellybox yet (or Jellyfin at all) but it seemed interesting to me because of the Spotify-like playlists. I just saw a reddit post about it on r/self hosted.
I've only been using Navidrome and Tempo lately for a couple days. Works pretty well. I am thinking about setting up AutoMuse for smart playlists but haven't gotten that far.