Just adding getting residency is fairly straight forward at U Missouri (and the other Missouri system state publics) too. It requires living in 12 months in the state (so first year plus the summer after for example), earning $3K in a job during that time. There are other requirements (like getting a drivers’ license and such), but the school has people to guide you thru the process. Missouri Residency // Office of the University Registrar
Some state schools that are inexpensive and same price for OOS include Western Il and Western Carolina.
Big picture I agree with Myos that your best bet is schools that meet full need, but they tend to be reaches. Meet need schools that have relatively higher admit rates include Oberlin, Lehigh and Macalester. You might also look at U Rochester, which comes close to meeting full need.