Confession: for a guy who hosts a podcast, I don’t listen to all that many of them. I used to enjoy 99% Invisible, and I still recommend it. But for me, it doesn’t go into quite the depth I prefer for the medium. Others do go into quite a bit of depth, but get bogged down by (often political) dogmatism and pettiness from the host (I’m looking at you, Waking Up). The Joe Rogan Experience is sometimes cool but is often too chatty and too much of Joe spitting his by now boring opinions.
I’ve recently become enamored of the physicist Sean Carroll. He works primarily in cosmology and is known, among other things, for being a strong proponent of the many-worlds interpretation of quantum mechanics. However, he’s also a generally curious guy with broad intellectual interests. (To give credit where it’s due, I discovered him through Rogan.)