It's incredibly boring because the US is designed to be incredibly stable. The most interesting parts are times of crisis and the civil war. But shit like that doesn't happen often. The entire gilded age for example is mostly a memory hole for me, I can't even name a single president between the end of reconstruction and Hoover.
Plus there isn't even that much US history to look at. Native American history is meme tier because there weren't any actual major settled civilizations that built things like the Nahuatl or the Inca, it's almost all just generic aboriginal tribe shit with muddied oral histories. And after that you just have the history of the US itself which is not even 250 years long. For context the Victorian era alone was almost half the length of that. US history mostly hasn't even happened yet.