I recommend Navidrome for music. The only issue I have with Navidrome is that with a playlist that contains a large collection of music, bogs down to the point of being inoperable. So, I have to split the playlist into smaller chunks.

For music I ended up using navidrome, and, on Android symfonium, which is paid (single payment) but so good, better than anything I tried at least a year ago. On a computer you can use any open subsonic client since navidrome exposes that

While I use plexamp/finamp for music and jellyfin/Plex for video, I use audiobookshelf for my audio books and it works amazingly well.

Audiobookshelf for audiobooks and Navidrome for music.

Jellyfin doesnt handle music quite as well as Navidrome does. Jellyfin is awesome for watchable media but it lacks a little on music. Navidrome handles artist metadata better. For clients, 100% Feishin on desktop, its just about perfect. On mobile, Castafiore or Resonus I think are two of the best. Finamp is great for a Jellyfin client on mobile but still it depends on the Jellyfin server which again doesnt handle metadata as well.

For Music and streaming, specially for hi-res audio. SACD etc streaming, take a look at lyrion music server. The best solution of the myriad I tried self-hosting. Supports podcasts and audiobooks as well

I started using Navidrom as suggested by someone in the group. I do not have audio books but it has a spot for them. If you want to get all fancy like you can use the MusicBrainz Picard for tagging stuff differently (or something like that I am really feeling the glue and sealant they used to put down the laminate in my place right now) but AudioMuse-AI does something to (again really feeling it).

audiobookshelf for audiobooks specifically, with Lissen as the android client.

For music, Navidrome with Tempus as android client and Feishin as desktop client, all scrobbling to ListenBrainz.

If you have an android phone, you're welcome to use my app Stillshelf. It has two shells, one for audiobooks (audiobookshelf specifically) and the other for music (Navidrome).

Well besides the excellent options already mentioned by others, there is also Finamp, a Jellyfin music player.

Others have also mentioned Symfonium which can play audio from a Jellyfin server as well, not only from a subsonic one like Navidrome.

BookPlayer is another one for iOS

Jellyfin stop working each time I close my screen.

screen of what? Laptop? Phone? Tablet?

it may just be a background permission problem

For Jellyfin, I prefer Manet.

Overall, though, I keep my music in Navidrome rather than Jellyfin.

Are you asking about music, or audiobooks specifically? I haven't tinkered with audiobooks so am not sure if that's handled differently..

For music I've been using Jellyfin as the server. On Android have tried a bunch of different apps, substreamer and Symfonium are the better apps. But I also like Fintunes, Jellify, and Resonus.

Fun fact: You can use most OpenSubsonic / Subsonic compatible apps with Jellyfin once you add the Subfin plugin (https://github.com/williamkray/subfin-plugin).

I dont use Jellyfin, but I heard of some of the things it did and jellyfin sounded like a step above due to its dedicated music app and similar songs for playlists.

I use Navidrome as the server and Symfonium for the mobile app. It is by far the best option I have ever used in the 20 years of setting up a personal server. I used Subsonic before this but it was abandoned years ago and Navidrome is a fork of it. The amount of continuous effort put in and new features that still get released is fantastic. Im always excited when i see a new version drop.

I’ve always liked Plex/Plexamp but have been using Jellyfin more lately and found Finamp to be pretty solid. I just wish it worked with Apple CarPlay.