Amazon Music although it appears Spotify is a little better on the curated playlist part. Since I'm an existing Prime customer I got to try it out for .99/mo for 3 months or something crazy cheap and now it's only $8/mo which seems cheaper than the alternatives.
Youtube Music is nice, but the inconsistency in volume levels from song to song sometimes makes it hard to listen to. That issue mainly occurs from playlists of various songs.
I prefer Pandora to Spotify for the reason BigRedBuster mentioned. I can just click and listen.