- Economics Explained - Polymatter - Wendover Productions (sometimes a bit harder to follow without video) - Practical Engineering (not all are listenable)
Here's an idea - just listen to audiobooks. If you're not interested in podcasts and you're not interested in videos, I'm not sure what other options there are. People don't generally make "audio-only" YouTube channels because people who want audio-only entertainment normally choose podcasts.
Further, if your only experience with podcasts is 2h conversations which could be summed up in 10min, then you really just haven't explored enough I'm afraid. The channel you mentioned, Economics Explained, has a great podcast.
Hardcore history has many factually wrong and misleading content in it. But yeah, it is entertaining.
I will check out Isaac Arthur.
Description: "Jimmy Akin’s Mysterious World is an exploration of the weird, the strange, and the unusual. Join Jimmy Akin and co-host Domenico Bettinelli for a fascinating look at ancient mysteries, folk tales, urban legends, crimes, conspiracies, and the supernatural from the twin perspectives of faith and reason."
You can either listen on YouTube (https://youtube.com/@JimmyAkin) which has an optional video component or the podcast version (https://mysterious.fm).
I've known some people would listen to ASMR to work. I've never been a fan but, really enjoy listening to synthwave and vintage video game music to work.
If you like games I also like Suggestive Gaming, Noah Caldwell-Gervais, Gaming Harry, Gingy and YourFavoriteSon.
Quinn's ideas was mentioned below, it's also great if you like sci-fi.
None of these channels rely a lot on visuals and is mostly written from a listening perspective, in my opinion.
If you have some specific interests like space or history or war I could recommend some more channels, I just picked the ones that I use the most personally. If you only take one recommendation then it should be Action Button, trust me these are so much more than just video game reviews and can be listened to many times thanks to their density
Youtube: https://www.youtube.com/channel/UC5UAwBUum7CPN5buc-_N1Fw
Spotify: https://open.spotify.com/show/3AZjRagzOkDX55Ftk8meuZ
He's very affable, good voice and cadence, and it's enjoyable even in an audio-only format. He's also very prolific, producing three episodes a week with several years in his back catalog.
Around 30min, but always something about weather in canada or potholes, in addition to a discussion on security.
Soothing Relaxation by Peder Helland
The Relax Guys - I love their salsa