Brief descriptions/genres definitely recommended. Please don't be afraid of being :LIB:, I feel like so many podcast recs on this site focus of Political Pods which while fun, I can find myself listening to audio content for 6 hours on some days and I don't always wanna blast politics into my ears, and I know a lot of other people don't either.
Common Descent Podcast - A podcast all about paleontology, evolution, and the like.
Lingthusiasm - A pretty introductory linguistics podcast.
Small Beans - More of a collection of different podcasts than a single podcast on its own. It's got a bunch of Cracked alumni, including Michael Swaim.
1Upsmanship - A spinoff of Small Beans where the hosts discuss video games and decide which ones belong on a sort of hall of fame hardrive.
History of English Podcast - Exactly what it sounds like. It discusses the ways that English has evolved since before it was even English, including a lot of relevant non-linguistic history.
Sardonicast - Three Youtube movie reviewers discuss recent films and one that each of them recommended the others at the end of the previous podcast.
Violating Community Guidelines - Sarah Schauer and :kombucha-disgust: discuss various internet phenomena in depth, like Furries, A.I Influencers, and Thirst Traps.
Conlangery Podcast - Good for making your own languages for fun and just learning about linguistics in general. One of the hosts (Bianca) uses the r-slur a few times in earlier episodes but I don't think it happens at all in the episodes she isn't on.