Where should I be aiming for?

Schools such as UMichigan and UCLA seem definitely to be within your range. Though this is a somewhat older analysis, you might want to use it to identify other colleges in a similar selectivity vicinity, or perhaps for guidance in choosing reasonable reaches: https://amp.businessinsider.com/the-610-smartest-colleges-in-america-2015-9. For strong programs in fields such a chemistry and physics, you may also want to consider appropriate LACs.