What selective colleges would accept me?

My SAT is a 2100 flat, GPA 4.450 on a weighted scale, about a 3.78 unweighted on a 4.0 scale, and my class rank is about 15. I do math competitions such as the OML, OCTM, AMC, am making attempts to volunteer and get my hours up to at least 50 before applying (i have 20 currently), and am in math honors society. And I participate in several clubs. Any ideas? I want to apply to places like Northwestern, CMU, UChicago, UMichigan, and maybe Berkeley.

Those all seem like reasonable goals.

^^ Agreed…

Try taking the ACT. Most of my friends scored much more impressively on the ACT than on the SAT. Also, SAT subject tests. I have a mediocre SAT I, but my SAT IIs were impressive and I’ve heard that many schools value those over SAT Is