Are you a rising senior? If so, did you take the PSAT last fall?
Do IU or Purdue appeal to you? Those are both very good schools. What majors are you interested in?
You are going to have to get a budget from your parents, and then run the net price calculators on each school’s site to get a cost estimate. The NPCs may not be accurate if your parents are divorced, own a business, or have real estate beyond a primary home.
Most scholarships come from schools themselves as opposed to scholarships from outside organizations.
If med school is in your future (guessing from your user name) you should minimize your undergrad costs and debt.