Like many people here, I've never found algorithmic recommendations useful. What works best is what has always worked best: recommendations from people with similar taste.

Back in the day, this was friends lending me CDs. Now, I follow a bunch of people on Mastodon who almost only post about music.

I've also found following the releases from specific smaller record labels quite useful - often the artists on a label will fit a certain vibe, even if they don't specifically overlap in genre.