Ear Hustle is fantastic, also, Behind the Bastards

Lateral, Tom Scott's game show style podcast is really fun and interesting.

Too Many Tabs - A comedy history podcast. Every week they pick a topic to deep dive on, usually a horrible person that influenced how the US is today.

Even More News - Comedy news podcast that does a good overview of news for the week. From the same folks that do Some More News, bit not scripted and out of character

Not sure if the interest in TTRPGs extends to actual play shows, but 3 that I have enjoyed are:

• Not Another D&D Podcast (NADDPOD): The other D&D actual play filled with former CollegeHumor people, the most famous being Dimension 20. First campaign is very classic D&D vibes to me, but with the twist that the world has already been saved by legendary heroes and our cast is finding their way in the shadow of that.
• Dungeons & Daddies: A group of dads lose their kids through a portal to the Forgotten Realms, and have to go in after them. Hilarity ensues
• Legend Lark (previously Dames & Dragons): Originally picked this as a counterbalance to the number of RPG podcasts that have a cast of all men. Did not disappoint. Great custom world and atmosphere, and the cast is extremely funny.

These are all comedy actual play casts because that's what I like. I will also caveat that I'm not caught up on any of them, and I've listened by far the most to NADDPOD, and give them some money on their Patreon to get bonus content.

Articles of Interest talks about the history of fashion, but focused on specific pieces of clothing like zippers, pockets, high heels, etc.

Shedunnit analyses classic mystery books (pre-1960s more or less) and authors.

Love NADDPOD, and Rude Tales of Magic for another actual-play.

I also like Too Many Tabs but their audio ads are so awful it's made me switch to watching the video version as the YouTube ads are more palatable.

hi! I have the suggestion of Ludonarrative Dissidents for TTRPG content. I haven't personally gotten a chance to listen to them, unfortunately, but I've heard good things!

on writing, my partner really loves Worldbuilding For Masochists which I've listened to and enjoyed, I just didn't get very far into it.

hope you find some good ones! I'm trying to get back into podcasts myself.

Not sure these recommendations fit neatly into those categories, but here are some:

• Tech: EFFector, How to Fix the Internet, Tech Won't Save Us - these mostly deal with the issues surrounding tech as opposed to the tech itself
• Long form explanation: Let's Learn Everything - the topics are mostly science related with most of the research coming directly from scientific papers, but they also do miscellaneous topics

Over several years scholars and I put together Academic podcasts and University lectures on Judaism, Christianity and ANE Religion

You might find something interesting in there.

I like QanonAnonymous for deep dives on weird conspiracy nutters

Gastropod is pretty great if you like food science!

Thank you for asking this question! I recently realized I would like to listen to something new, so now I have some ideas :)

From my side, I may recommend Clearer Thinking Podcast with Spencer Greenberg - he is a psychology researcher but he covers other interesting topics too. Check it out!