The 30 for 30s are good. Last season had one about Rickey Henderson (big fan). If you're looking for something less story driven, the Bill Simmons one is good to kill time . Non-Sports, BagMan was really good (about Spiro Agnew) & the Conan O'Brien needs a friend has had some laugh out loud moments.
In general, I like most of The Ringer ones...
-One Shining Podcast (Mark Titus & Tate) - I just find Mark Titus hilarious. He's the perfect blend of arrogant, self-aware, and self deprecating. Coverage is a bit more top heavy, B1G & ACC, and more specifically blue blood-focused.
-BS Podcast (Bill Simmons) mostly for NBA with House/NFL with Cousin Sal and occasional celebrity interviews.
-The Friday NBA podcast (Tjarks, O'Connor, Chau) they do that is mostly NBA draft focused (think they renamed it Corner 3 but its in the NBA feed... avoid the Group Chat, Mismatch, Heat Check, and Sources Say pods.. pretty much all instant reaction and NBA gossip that Bill just does better himself).
-Ringer NFL (Mays & Kevin Clark)
Other college basketball ones
-Game Theory (Sam Vecenie) is a mixture of NBA draft and just NBA with a little college thrown in. Probably most in-depth basketball analysis of ones I listen to, especially deep dives breaking down prospects' games at X and O and mechanics level.
-CBS Eye on College Basketball Podcast (Norlander and Parrish) Probably most comprehensive college basketball coverage, but I find Norlander a bit of a bore and Parrish a bit egomaniacal (even if a little self-aware). Chemistry isn't as good as the One Shining Pod guys.
-Solving Basketball (Jordan Sperber) is more analytically inclined. This one is new, but a who's who list of college basketball analytic guests (KenPom, Bart Torvik, aforementioned Vecenie)
Other NBA ones
-Lowe Post (Zach Lowe) is NBA insider and comprehensive NBA coverage. No college content at all.