I like to add Ahoy. He uploads maybe twice a year, but eeveeytime it’s golden. He mainly focuses on videogame history.

Another is the Extra History channel short history videos with nice animations. They are a spinoff of Extra Credits that focuses on the gaming industry.

I’d also like to add Fearless & Far it’s more travelvlog like, but the guy visits all kinds of remote places and people, which makes it really interesting to watch.

Well, I recently learned of the existence of Excel competitions, so I’m not sure about the ‘most boring’ part.