I'm currently listening to the following pods while the quarantine continues:
Artifexian - This is about as nerdy as it gets. Two Irish gents talk about worldbuilding. They're pretty fun, and they sometimes stray into real-world stuff as well, whether it's politics, flag or currency reviews, or talking about language. I can't imagine anyone here would be interested in stuff like that, but it's fascinating to someone like me.
Three Point Perspective - Three professional illustrators talk about various aspects of commercial art. Again, I can't see this appealing to anyone in here other than me.
Office Ladies - I never, ever thought I'd listen to a TV show rewatch podcast, but here we are. I'm also watching each episode prior to listening. I won't go into details, if you liked the show, then you'd like this. I remember watching the first few seasons and then dropping off after I met my wife in '07, so it'll be fun to watch the ones I missed. I apparently have until the end of the year to see it before they take The Office off of Netflix.
In terms of sports I'm trying to keep up with the usual, 31 Thoughts, Locked on Avalanche, etc., but it's kinda depressing to listen to people talk about sports when there's no sports happening, and we really don't know when they'll happen again.
I love that everyone else has some pretty smart, heady stuff on their podcast playlist, and mine are as frivolous and dumb (but fun!) as all get out.