Ideologically and politically, Bismarck and Frederick. (Absolute authority and dictatorship)
In his youth, there was also a writer named Fuehrer Luntz, who also liked it. He has a book, Ostara.
Another answer is himself. He has a famous saying: "A true genius never needs a teacher." This means his high self-confidence, so this should also be an answer.
As for Nietzsche, Goebbels and others later advocated it, but it was not the first favorite of the Fuehrer.