I can’t believe nobody has suggested The Teacher’s Pet yet, it is absolutely fascinating listening. I can’t recommend this enough based on your original list.
https://open.spotify.com/show/19LCrHZaUuWvizzJRZi8YN
I will also second some of the other suggestions above such as S-Town and series 1 from Serial (same guys that made S-Town). Those are really interesting to listen to!
https://open.spotify.com/show/5wMPFS9B5V7gg6hZ3UZ7hf
Some of the BBC ones mentioned such as A Very British Cult, To Catch a Scorpion, Worse Than Murder, Lazarus Heist (very good!) are definitely worth a listen.
But seriously, Teacher’s Pet, best one out there. You’ll be practicing saying ”The DPP” in your best aussie accent in no time.