I suppose it depends on your tastes, but I read Pitchfork reviews and check out the artits on Spotify. I do not limit my tastes to one genre, so that makes it more interesting when exploring. I’ll also leverage the Related Artists section of an artist’s page if I find a new artist that I like.
Some email services will let you append arbitrary strings to the end of your email address with a +. Whenever a sales associate asks for my email to sign up for discounts, I give them email+spam@provider.com. I love the looks I get for that.