It really depends on what you like. I personally just found Japanese versions of what I liked watching in English (cooking shows, true crime, some comedy, let's plays). Interestingly I found a new interest in house makeover shows after I saw some completely insane makeovers on 大改造 (in one episode they put the entire house on rails and pulled it to the side temporarily in order to make new foundations).

The only thing I couldn't find an abundance of is long-form video essays -- it seems that (for whatever reason) that isn't something that Japanese YouTube audiences want to watch. TV shows make documentaries which are kind of similar but those are also fairly hard to find.