Just a few, there's definitely a lot more like CGPGrey, a bunch of PBS channels, 3Blue1Brown, Veritasium (the production quality on his recent videos!), Mark Rober, Tom Scott, Johnny Harris, Legal Eagle, etc
Also, not really HN content but if you like cooking, check out Adam Ragusea and Ethan Chlebowski, much better than the more popular cooking channels imo.
Even Legal Eagle has had a lot of political clickbait of late, especially with his shorts. He'll talk about the riots, or matt gaetz or whatever, but the format is too short to allow any analysis, and his longer videos have a lot of "reacts" type content. Leonard French/Lawful Masses is the other extreme though, where he tends to just go through entire legal documents and splice in the relevant background occasionally.
