The Unmade Podcast (https://unmade.fm/) is probably my GOAT. Brady Haran (from Numberphile, Computerphile, etc.) and his Childhood friend, Tim Hein, come up with wacky ideas for podcasts that they won’t actually make. Definitely the funniest podcast I’ve ever heard.

Hello Internet, also from Brady, with CGP Grey, is also amazing. Though sadly on hiatus.

I love Reconcilable Differences! Probably my favourite podcast at the moment. I’m currently working my way through all the old episodes. ATP is very good too, but I think it’s too focused on current events to go through all previous episodes

Oglaf (NSFW)