Pick a genre to see Spotify playlists that accept submissions, largest first. Add a follower range to narrow the list. Smaller playlists are often a better first target for a new artist, so try more than one range. The free preview shows the first word of each name. Full access shows every playlist in full.
Once you have a shortlist, write a short pitch for each curator with the free Pitch Email Generator.
Delaynote lists 12,000+ Spotify playlists accepting submissions. Lifetime access includes curator contact details, genre and mood filters, and a submission tracker.