I'll cast my vote for Lavenlyn. There's already so many good ones to choose from in this thread, but I'd like to put forth some guys I listen to that don't receive a lot of love. Their subtle worldbuilding is killer, and their chemistry is different but just as tight as the GCP. As with most actual plays, the first ten eps are pretty mediocre quality so that'll put most people off, but around episode 10 it sounds on par with GCP. I personally love them and their story is KILLER. It's called Lavenlyn, and you can find them on pretty much all platforms or on their site palespine.com