Musish - A web client for Apple Music
Playlist Machinery - Tools that help you create & organize your Spotify playlists
feverTunes - A web player for Apple Music support adding tags to playlist
Playlistor - Convert Apple Music playlists to Spotify and vice versa
Concertino - A classical music client for Apple Music 🎻🎶
playAppleMusic.com - An (unofficial) web player for Apple Music