Youtube Music, Spotify, Deezer, SoundCloud, BlackHole Music Player, AIMP, TuneIn Radio, Funkwhale, Pandora, MusicBrainz Picard, TIDAL, Radiooooo, ReverbNation, TapinRadio, SHOUTcast Radio, Amp.lol, Logamp, 8tracks, Instaud.io, Daily Tunes, Radio Browser, KOLLEKT.FM, Musx, yungcloud are some alternatives to Radio4000.