I like Sam Harris' podcast. Also Joe Rogan can be good.
I don't often listen to podcasts, but I did listen to an episode of Sam Harris where he interviewed Megan Phelps, who was a prominent member of the Westboro Baptist Church and fled, along with her sister Grace. Megan is a fascinating person with a compelling story, and it was a terrific interview.
I've listened to a bit of Joe Rogan. He's also an interesting person. He has some interesting ideas about life and consciousness and the universe, but he seems to often veer into conspiratard territory, which is a big turn-off for me.
-k