Franco, Mussolini and Austria before the Nazis were fascist.
National Socialism WAS a brand of Socialism. But instead of the internationalist, “border-less” socialism propagated by the communists, it had a nationalist, racist approach.
Real Fascism is based on traditions, nationalism, class and often religion. National-Socialism resembled the Soviet-Union in most aspects more than it did resemble the other European Fascist states.
Mussolini was a socialist.