Just seconding that when the time comes to develop an application list, if engineering generally or ChemE specifically remains an interest, it will be possible to put together a list of colleges good for that which also have good need aid. Depending on how things develop, that list may include some Ivies and Ivy Plus, but almost surely not all of them, and not only them.
For now, though, all you really need to be doing is continuing to reasonably challenge yourself across all the core areas each year. Possibly excepting Spanish if you run out of courses to take, although if you wanted to keep up with it in some way I think that would be a good idea even holding college aside.