I've recently finished the fantastic series on BBC Sounds about the events at the Fukashima nuclear power plant a decade ago. Each episode is roughly half an hour long, and it's really well acted and very engaging (It's called Fukashima)
Another from the BBC that I've been loving is Call Jonathan Pie. Okay so Jonathan Pie is a YouTube satirical journalist. In the podcast he's taking calls from the general public. As someone who's usually on board with his politics I think it's pretty great.
A Shadowrun Actual Play podcast. It's a role-playing podcast made by three friends and occasionally a guest, that makes me laugh so hard I have to cry.
The only 2 podcats I really listen to are Behind the Bastards and Darknet Diaries. I’m always so afraid of trying new podcasts cause there is so much garbage out there and I don’t want to waste my time. The Fukashima one sounds really cool though.