Seeing the other post here about YouTuber that went downhill and seeing content creators I am familiar with makes me sad. But how about those that still makes great, high quality content?
I agree. There are not many YouTubers making and people enjoying the absolute tiny niche content I enjoy.
With your high standards you may like Huygens Optics an old optics engineer who does videos about light simply because he enjoys making them. But the content is niche.