A few more random ones:

Imaginary Worlds -- a show about SF, ranging from deep dives into specific books and TV shows, to common themes (personifications of Death in fantasy was one episode), to just about anything else.

Ear Hustle -- a show produced from inside San Quentin prison. One of those shows about a place we just don't get exposed to otherwise.

Criminal -- the only true crime podcast (not counting DD) I listen to. Each episode is a standalone, and Phoebe has the best voice in podcasting. Episodes range from awful crimes to historical cons to lighthearted (there's an annual one with crimes committed by animals).

Outside From the magazine of the same name. Not every episode's one I bother with, but they did a "science of survival" series that was amazing, dealing with everything from hypothermia to ingesting poison mushrooms.

Twenty Thousand Hertz. A show about sound. Covers everything from the sounds bugs make to how the Netflix stinger sound was developed and just about everything in between.