The top level nazis were mostly humanists or pagans and Hitler was no exception. I think it was Heinrich Himmler who called Christianity a plague that needed to be wiped out.
I wouldn’t call them pagans persay. Maybe some of the more devoted crackpots. But all their pet obsessions need to mean is that they fell in with the muddled fads of the day. Hitler was mad for Wagner, for instance, and much of his thought can be explained via the Wagner cult.
Not that Wagner was sui generis. He reflected the psuedo-intellectual currents of his time, as well.
Himmler flirted with the idea of converting to Islam. He considered Christianity a religion for cowards, and that Islam was a religion that soldiers could understand.