FWIW: Trump is a malignant narcissist. The modern most well known historical equivalent would be Saddam Hussein. Adolf Hitler had many aspects difficult to identify, but despite his charisma, his overriding psychological trait was necrophilia — he was a lover of death and destruction. Different types of sociopaths.
I think he's closer to Mussolini, however Mussolini was a newspaper editor, a writer, an intellectual and he fought in the trenches in WW I. Our would-be dictator is of course a coward with a vocabulary consisting of about three adjectives and the inability to string together two coherent sentences in a row. But he's sure got the Il Duce mugging face down cold.