Current or previous Brazilian Premier?
The current Argentinian leader however..... he's most definitely a populist...and definitely a right wing libertarian.
Will he turn out to be a fascist? Possibly, but that will probably depend on how authoritarian his regime becomes. As things stand, he is pretty laissez-faire on drug policy, firearms, prostitution, same-sex marriage, sexual preference, and gender identity, while opposing abortion and euthanasia.
He'd also undoubtedly love Trump to get back into power in the US.
So fascism in the traditional meaning of the word does not really cover it (whereas it probably does for the likes of Putin), but that doesn't mean that the current crop of right wing populists aren't equally abhorrent or dangerous for democracy and the rule of law, while many of them pretend they are protecting it.