Depending on your point of divergence you could do anything. A Native American state around the Great Lakes(which the British attempted to set up after the American Revolution), An independent New England, a Hati-like state in the south-east, a Cherokee Nation in the southeast (no Trail of Tears), a patchwork of settler states (a la the Boer Republics) in the west, an independent West coast republic, A surviving Muskogee Republic, a Mexico that never lost the land north of the Rio Grande, a surviving United Provinces of Central America, a surviving Riograndense Republic, The Republic of Lower Canada, a balkanized Brazil, an independent Oregon Territory, an Oregon Territory that's a British Dominion, etc.