This is a nice video on the Order Of The Black Sun. It isn’t 100% accurate, but few sources you will find anywhere are and it is obviously trying hard to be politically correct but pretty good overall I think. It touches on most of the main topics of the research the Germans were doing at the time and they turned out to be right about everything of course as history has shown. I have numerous videos on this topic you can find on the site or at the channel I keep the videos on. The Root Races article and video also go nicely with this.