So Tidal doesn't have "channels" but they do several things I think would accomplish what you're hoping for. You can search for genres and in there you'll find albums, new music, playlists created by Tidal, playlists created by others, etc. They also post personalized mixes for you that incorporate some songs you've listened to and other songs that would be similar. If you run through a playlist either you've created or a public one, once that playlist is over it automatically kicks into kind of a pandora mode where it continues on with a mix of artists/songs similar to what you were listening to. I've been relatively pleased with it for a long time now as using the mixes and continuing to listen after the end of a playlist puts some new music in there to the point where I rarely feel like it's gotten stale. Add in good integration and I'm pretty happy.