My favorite client on android is symfonium. Also has support for more sources:
Local
Plex
Emby
Jellyfin
(Open) Subsonic
AudioBookShelf (Experimentell)
Kodi (19+)
OneDrive
box
Box
Google Drive
Dropbox
pCloud
WebDAV
SMB/SAMBA

Strictly Jellyfin:
Had good experiences with Finamp before switching to Symfonium.