I admit I’m a bit out of my depth when it comes to Latin American history and politics, so please bear with me.
Working on a continued Cold War TL in which one element is that a number of Latin American nations are absorbed into the communist camp (in addition to OTL examples like Cuba and Nicaragua, I have Peru, Argentina, El Salvador, Venezuela, and Mexico going red, though I know at least two of those are somewhat unlikely and rely on extraordinary circumstances).
With a PoD of 1945, how many Latin American nations could concievably have been flipped red? Among them, which stood out the most vulnerable to a communist takeover, or at the very least adopting a pro-Soviet foreign policy? I know Chile had Allende, but I'm still having Pinochet overthrow him in 1973. Brazil, I know, had a leftist President that got overthrown, as did Guatemala. Guatemala also had a 30 year civil war that might have produced some sort of takeover.
Anything I'm missing? What nations would have been most likely to fall to communism?