There's an increasing number of reasonable documentaries being made by the mainstream now. It seems like the taboo has lessened somewhat. I judge them by if they only say "nazi" referring to everyone or if they use the factually and historically correct "national socialist" and similar terms. Nazi is a simple slur, not unlike "gooks" or "commies".
Here's one documentary I found very interesting:
10 part series, the uploader has them all.
While the title is the typical tropes, the content is very good imo. Sp5 above posited sarcastically that we think "Hitler was a misunderstood genius". The cult of Hitler has been milked, but this documentary shows a much more nuanced picture, namely that Hitler was primarily a great politician who could as easily speak to proles in a German beer hall as he could mingle with Bavarian nobility.
Hitler's actual ideology was limited to run of the mill antisemittism, that EVERYONE at the time agreed with. What he really was, a hardcore German nationalist. His anti-semittism was mostly relegated to being anti-communist and seeing jews being disloyal to their countries. You could say, in modern terms, he was a MAGA boomer type. Yes. We have to judge by the standards of the time, and the anti-semittism of Hitler was completely normal and commonplace, in America as well.
The big bad anti-semitte was Goebbels and secondarily Himmler. Goebbels hated jews with a ravenous fire, stemming from what he thought was "shut it down" of his earlier writings. Goebbels was also a notorious womanizer and player, a far cry from media caricature of Goebbels the incel cripple.
Himmler was a very interesting character as well and the actual spiritual and occult leader of the national socialist movement. He was also a hardcore anti-semitte, more of a "racist", who had more of a pseudo-biological hate of jews as a pollutant of both the aryan blood and soul.
In the documentary above, maybe episode 3 or 4, there are several examples of Goebbels clashing with Hess about how anti-semittic the nazi party should be. Hitler himself is worried about Germans not being on board with the Goebbels like fiery anti-semittism, but eventually Goebbels wins out over Hess.
All this shows, that Hitler is a charicature, a scapegoat, someone we should do our best to understand and see in a historically accurate context.
The other documentary I would encourage everyone to watch is "The Occult History of the Third Reich", which is another excellent video documenting how "nazi ideology" came to be and how it entered Germany through America and Britain. This also explains why most brit and american elites did not instantly reject Hitler. He was, after all, merely expressing views and research widely accepted in the US.