Physics Major

Alright, I'm at the point where I need to be finding a college soon. Problem is, I'm not sure what classes I really need to be looking for. I'm interested in theoretical physics, specifically cosmology, but I have no idea what classes are typically associated with this. My best guess would be, obviously, cosmology, as well as relativity....but no two colleges seem to offer the same classes. Any help would be greatly appreciated as I'm utterly lost here.

Move to Canada and get a degree in astrophysics, The schools are good, living is cheap, and the degree and programs are amazing,I'd recommend shooting for a Canadian Ivy League School, they're more research oriented than the US Ivy League, and eligibility of a school to be considered for it is best on grade acceptance, at least look at UoT (University of Toronto,) Queens, or McGill, they're some of the top schools in the country, and McGill is one of the top ranked in the world for physical sciences.  Best of Luck OP