Try this:
Or your school, which sounds like its quite experienced on this topic. And by that I mean research at your school, not ‘Who went where from the previous class?”
Andover is an outlier in your list if you don’t want a big school. It’s the biggest. But it also has an African Students Union, a Black Students Union and an Afro-Latino-American Society, preposterous facilities and sports, etc., on your list of requirements.
Spend some time figuring out what you really want. If your tests scores are good, you may have to do less than 12 applications. It also sounds like you’re in a pretty great school now, so less pressure.