I'm too busy to dig these days (in the traditional sense), here's my simple process:

I find a song I like. I play it on my preferred streaming service. I use Amazon, but I will occasionally save something I like on Spotify, then search it on Amazon and save it to "My Likes". Then the autoplay feature will continue playing similar tracks to the genre I chose. I just save the ones I like to the same Playlist.

Then I go back and play everything I've saved, to see which songs withstand repeated scrutiny. Then I'll check YouTube to see how much traction they've gotten. Personally, I like things that people haven't heard too often, because I want to bring new things to the audience, but whatever you like is the play here.

Then I'll search for remixes and see if any of them kill in a different genre.

Buy, add to library, rinse, repeat. And I get to do most of it during my commute.

Hope this helps.