The most obvious answer is to apply to test optional schools. Chicago is one. Many LACs are also test optional if you would prefer a smaller school. One daughter had quite a high SAT score, but only applied to test optional schools for the simple reason those were the schools that she was interested in. There are many good ones (the ones that I know of are mostly small).
The other option, if there is time and if you can afford it, is to hire a tutor. They can give you a sample test, and then see where you did well and where you need help. Then you can focus in on the areas where focusing will do the most good. This might involve answers to various types of questions, but also might involve test taking tips. It has been said that to some extent the SAT measures a student’s ability, but that to some extent the SAT measures the parent’s ability to pay to hire a tutor.