I'm a sucker for all of the NPR ones.
Radio Lab, This American Life, Planet Money, Hidden Brain (especially like the episode on Behavioral Economics) etc. Embedded is really interesting, but forewarning they're doing a whole Trump thing right now in season 2 (profiling cabinet members pre administration) so it's gotten more political.
Science VS is really good.
If you like Music appreciation, Song Exploder is really cool. They dive deep into songs with their composers. I really enjoyed the GoT theme and MGMT episodes.
Doesn't seem like you're into the whole Fiction/Modern Radio Drama stuff, but if you are I have some decent suggestions for you:
1. No Sleep Podcast: (horror fiction) basically voice actors read stories from the No Sleep Subreddit. Most are surprisingly good, and at this point in season 9, they're easily pushing 400-500 hours of content to pull from.
2. Tanis: Creepy modern day mystery mockumentary-- sorta x-files-ish without aliens.
3. The Truth: Short random and interesting Audio Drama stories. Usually about 15 minutes per episode. Really interesting stuff, and worth a listen probably more than the other two.
I'll probably think of more... my commute sucks less with these