Barely Sociable is my goto for listening, his voice is very soothing even if the topics are sometimes a bit in conspiracy land.

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.