> then hes in a good place to introduce some kind of monarchy

I'm quite skeptical that that's the case. The basic problem is that a monarchy has an entirely different source of legitimacy from a modern popular dictatorship like Bukele's. What examples are there of this transition happening successfully? I guess you could maybe count North Korea, but even they haven't actually declared a monarchy... I could perhaps imagine it happening there, but that's a real extreme special case. A much more ordinary case like Bukele, I don't see it.