Huge podcast fan. In order of what I listen to most religiously:
1. Jocko Podcast: ex Navy SEAL commander, excellent book reviews and commentary on leadership, fortitude, the evil and the good in our world. must listen. I listen to them multiple times
2. Dan Carlin's Common Sense. Somewhat libertarian, definitely neither left nor right, look at politics and current events.
3. Dan Carlin's Hardcore History. Audiobook quality. Start with "Wrath of the Khans" or "Blueprint to Armeggeddon"
4. The Martyrmade Podcast: worth it just for his 5-6 part series on the history of the Arab-Israeli conflict
5. Science Friday
6. Intelligence Squared, Intelligence Squared US debates
7. Sigma Nutrition
8. Tim Ferris
9. Joe Rogan (depends heavily on the guest)
10. Global Recon podcast -pretty specific to military personnel but I love it
11. Stuff to blow your mind
12. History on fire
13. Waking up with Sam Harris (should be more like 4 or 5 but I forgot)
and at least 5 or 6 more but I'm bored.