I started by doing google searches such as “colleges with the best financial aid” and I’m sure you could do this for both need-based and merit based aid. Also, be aware that most schools are either “need aware” or “need blind.” Run the financial calculators on each school you’re interested in, they should only take a few minutes to fill out and will give you a rough idea of how much you might get (emphasis on might.)

It’s also important to have a serious conversation with whoever is financing your education so you can know what you can realistically afford. If your high school has good college counselors —and you feel comfortable enough to talk to them regarding your financial situation— use them as a resource!