If SLU is affordable, presumably via need, then maybe a meets need school would work.
The trick is - would any accept you?. You might look at Connecticut, F&M, Holy Cross, Kenyon, Denison.
Run the NPCs to see the cost. You’d need to apply TO. But you have great in state schools of varying size - Mizzou, Missouri State, , S&T, Truman State,
Arkansas has a scholarship that might work for you too and Fayetteville is a great city.