Closest I've had to that happening was Mark Millar's Superman: Red Son, which is a DC universe Elseworld in which Superman lands in the Ukraine in 1939, is brought up as Stalin's heir and a sincere believer in truth, justice and the Soviet way, and takes over the world in a genuinely benevolent dictatorship which works because he has superhuman intelligence and superhuman benevolence. The pitch I'd been planning had Superman's arrival on Earth be the Tunguska explosion, and was going to be framed by an aging Bruce Wayne sending Lois Lane to interview the Superman, but other than that was very similar, and is now totally pointless. Which is annoying because while most of Red Son is much better than anything I could come up with, there are elements of the end that do not quite work for me in ways that are annoying to me.