Honestly, you sound like a bright, high-achieving, and ambitious young man. I don’t think that you mentioned a standardized test score. Were you able to take the SAT or ACT? It’s not required this year, but a high score can definitely help your application.
With all the family members in school in the US, and with the statement that tuition money is not a barrier to your going to college or medical school in the US, let’s take money out of the equation. So now, we are left with residency or citizenship. The fact is that you are extremely unlikely to get into medical school in the US, even if you have perfect MCATs, perfect college GPA from a leading school, and are a published researcher. US medical schools are not in the business of educating people who are not US citizens, or US permanent residents. So no matter where you go to college, if you want to go to medical school, it would be in Canada.
If I were in your shoes, I’d go to McGill for college, and try to get into a Canadian medical school. It will be SO much cheaper for you, the education is excellent in Canada, and with an MD from a Canadian medical school, you will have no trouble getting a spot in a US residency program, and an immigrant visa. Just don’t ever tell anyone in the Canadian education system that that is your goal! Canada doesn’t like training doctors who plan to jump the border into the US. Canada will invest over half a million in training you - they will want you to practice in Canada. So keep your true intentions to yourself.
If your parents are hell-bent on spending a quarter of a million dollars to send you to a second-tier private college in the US, I would consider applying to schools that have acceptance rates of 25% or higher. You will pay full fare. You might consider some excellent flagship state schools, like U Michigan, UNC Chapel Hill. These top-notch flagship state schools would see you as a good, full-fare paying student to prop up their bottom line - and these are excellent schools. Or you could apply to second-tier private schools, with acceptance rates of 25% or higher. They too will likely be happy to have you, at full-fare. You might get some merit money at schools with acceptance rates of 50% or higher, where your qualifications are far above that of their average applicant - but you say that money is no object. Personally, I think your parents would be far better off investing that quarter of a million dollars for you in the stock market, than in putting it into a full-fare US college education. Don’t waste your money. Go to school in Canada, go to med school in Canada (because without US citizenship or permanent residency, you are NOT going to get into med school in the US), and then apply for residency training in the US - and get your permanent residence and US citizenship as a much-desired immigrant, a physician.