There's actually a lot of D&D podcasts, but a lot of them don't interest me because of the lack of in-depth story-work. I like story, and that's why Critical Role is my favorite. There's a Chicago guy, Aram, who does this beautifully edited podcast called Godsfall, and if that were even semi on time and real-play, I might like it even more than Critical Role. But it's very linear, and not as free flowing as CR, and so while it's magnificent, it hasn't grabbed me as much.
For me, exploring the characters and the world is critical to me enjoying the game. I'd heavily recommend Godsfall - just be aware that there are significant periods of inactivity between episodes because of the level of work and detail Aram puts into it.