MoodPlaylist is a good option with its AI-powered service that creates playlists based on your mood, era, genre or artist preferences. You can export playlists to Spotify or import playlists from other big music services like Apple, Amazon and YouTube. The service has no ads and offers a variety of ways to create playlists, so it's a good option if you want a more personalized music streaming experience.
Another good option is PlaylistAI, which creates playlists based on your preferences, actions and moods. It can link to several services, including Spotify, Apple Music, Amazon Music and Deezer. You can create playlists on the fly by typing descriptive phrases, and it offers smart suggestions, custom playlists and personalized favorites. The service offers a free trial and subscription management through the website or iOS Settings app.