Winamp, VLC Media Player, MusicBee, MediaMonkey, AIMP, foobar2000, Rhythmbox, Avee Player, Audacious, Clementine, Strawberry, Amarok, Symfonium, iVolume, Autobeat, DeaDBeeF, Music Center, gPlayer for Google Play Music, Audaptor, Client175, Mirro Player, Anontune, Sonique are some alternatives to Nextcloud Audio Player.