The Rest is History (history podcast with both mini-series... serieses... series... and one-off episodes)

Clear Eyes Full Hearts (Friday Night Lights rewatch)

The Line (Canadian politics -- there are a number of podcasts with this or a similar name, so you're looking for the one by Jen Gerson and Matt Gurney)

Stories Podcast (short stories for children; my kids like this a lot for road trips)

Old Books with Grace (old/very old book talk with a medievalist)