Talk to a college counselor. They can give you information on good school depending on your credentials.
Based on what you've got, you're pretty much in at any state-level schools you'd apply to. I'd look around at liberal arts schools and maybe even a couple ivies if you're so inclined.
Once you get to the ivies though, gpa and sats will neither help, nor hinder you. Once you have good grades and test scores, admission is based on sheer luck. This year Yale said they selected only one fifth of the applicants who were "good enough" to get in because of class size limitations. They couldn't pick the best because there was no clear group that was the best. So they had to accept and decline based on almost random statistics like location and race, future majors, etc to make a diverse freshman class.
Beyond luck, you want to rack up good essays, reccomendation letters and extracurricular activities.
Just as an example, I go to a small private high school with all-honors courses. (Nobody has ever graduated with a 4.0, the work is too hard.) I had a 3.8 GPA and an SAT of 1490. (700 math, 790 verbal)
I was rejected by Harvard and Stanford, waitlisted by Amhesrt and Pomona (who was oddly enough statistically more selective than Harvard this year), accepted flat by University of Chicago, Oberlin and Reed, and accepted with a $10,000 annual merit scholarship to Occidental. Many of the desicions would have been different had my reccomendations, essay, and extracurriculars been different.
Once again, talk to your school's college or guidance counselor. They can help you build an application.
Oh and apply to schools like Harvard even if you don't think you'll get in. You may have only about a 5% chance if you apply, but you'll have exactly a 0% chance if you don't.