I listen to
Sawbones and
My Brother, My Brother, and Me by the McElroy family, which is kind of weird since I actually went to high school with those guys (and had a massive crush on Sydnee), and now they're minorly internet famous and hang out with the creator of Hamilton and work for polygon.com. It's surreal, but their shows are really fucking good. Sawbones is a show about medical history and all the weird ass things we've done to try to heal people that for the most part probably killed more people than they helped (it's funnier than it sounds), and MBMBaM is a comedy show about the McElroy brothers giving basically the worst advice you can possibly imagine.
I also listen to Limited and Constructed Resources, as well as the aforementioned Third Power, which is sometimes irritating because they have way different cube philosophies than we do here (they go for powermaxing pretty hard) and half the time they're just talking about cats instead of Magic, but they sometimes have good insight into stuff.
I listen to
Welcome to Nightvale in fits and starts, but I recently got into
Alice Isn't Dead by the same people, which I like way, way better. Welcome to Nightvale, if you haven't heard of it, is a serial fiction comedy/horror podcast that can best be described as NPR from the Twilight Zone. Meanwhile, Alice Isn't Dead is a strict horror podcast about a female trucker searching for her lost wife and stumbling into America's weird occult underbelly. It's genuinely creepy and way less twee/fanservicey than Nightvale.