I got kind of obsessed with this topic a couple of years ago. Still working on 'accepting' that "I don't know the full truth, but I do know that the official stories are lies."
Anyway, this is the best documentary I've ever seen re: Hitler. It's 6.5 hours long but well worth it if you're interested. And of course it was removed from YT.
https://archive.org/details/youtube-3HWxKahieBY