My biggest suggestion is to actually create a list of schools that you actually care about and would enjoy attending. Aside from being in the top 25 of the US News Rankings, your schools don’t have much in common. I don’t see how it is possible for one student to be happy in both Brown and NYU or in Northeastern and Swarthmore or in the bustling city of Cambridge at Harvard and in the remote town of Ithaca at Cornell. The vibes are so completely different. The student body is different. The local area is different. I understand that you have achieved greatly, but that doesn’t mean that it makes sense to only apply to the most selective schools in the country.
Brown and Princeton don’t even have business schools. So I highly recommend that you do research and visit schools extensively. Also, applying to that many reach schools doesn’t make sense in terms of quality of application. Yes, some supplements may over lap, but you will be looking at making at minimum 40 supplements. And you will most likely end up reducing the chance of you getting into these schools. 40 average supplements is not nearly as good as 10-12 amazing supplements. The quality of your applications will go down with this many schools and your grades in school will suffer too because of how much you have bitten off.
Your list needs A LOT of work. If I were you, I wouldn’t apply to more than 6 reach schools that you are REALLY interested in instead of 20, just for the sake of applying and hoping you get into an elite college.