I had no idea he was racist! Any stories particularly bad? I haven't read much Lovecraft
There is one in particular which I just couldn't finish, The Rats in the Walls, where there is a cat named N****er man and is mentioned so much. Some revisions have it renamed to Black Tom, but the audio book I have didn't. All in all there are still a number of great stories, you just have to sigh and shake your head when the only non-white characters are useful idiots who dig up corpses for the more enlightened white characters.
I've never liked Lovecraft but will give that a skim; sounds educational. My problem is I don't think he's aged well, the occult just isn't scary to me anymore. I recently read Annihilation by Jeff Vandermeer, if you haven't read it you might like it! Similar building horror but a more modern take.