If you want a quant-heavy finance program (as your interest in MIT implies), consider Carnegie Mellon, which has a top-5 undergrad business program and a strong quant/tech emphasis. UMichigan is another top program that’s worth considering. On the west coast, UW-Foster could be a good addition to your list.
Closer to home, consider the Claremont Consortium - Claremont McKenna in particular.
IU-Kelley is the oft-recommended top-tier business program that can be considered a safety for top students. Another possibility to consider is the Riekes School at UNL, which is a highly selective cohort honors program with a Business/CS/Design core - within that you can select any related major, including Finance. https://raikes.unl.edu/
You seem like a very strong candidate; if you build a balanced list, you’ll end up with good options!
Keep in mind that some schools (UPenn and CMC, for example) fill a high percentage of their class in the Early Decision cycle, making RD far more competitive.