The most famous nazi in history is Adolph Hitler.  Right wing Trump supporters marched to the tunes of Hitler's propaganda (blood and soil) and adorned with Hitler's insignia (the twisted cross).

There are many practitioners of fascism and Mussolini doesn't  define them all just because he was pithy.


Dr. Lawrence Britt has examined the fascist regimes of Hitler (Germany), Mussolini (Italy), Franco (Spain), Suharto (Indonesia) and several Latin American regimes. Britt found 14 defining characteristics common to each:
http://www.rense.com/general37/char.htm