I would say the coronavirus might help and might not depending on how things pan out for 2021.
Michigan is tough but next year will be interesting as they will need to manage depending on what happens with this virus
BostonU and NYU you might have to apply to them ED 1 or ED 2. To go from a 3.0 to a 3.5 in a year is tough. BU might have issues if they start spring instead of fall this year (They’ve announced it as a plan)
The state schools listed are a great combo to look at. Is Michigan State on your list?
Ohio State accepted 8000 more students this year then last. I think you have a better list now. Keep in mind the acceptance rate is low for international at most of the schools listed. Penn State its 20% (son goes there) and Ive met a few Emiratis their GPAs are higher with AP and IB
As for your brother the UK and Canada are a headache as you enter a major and if you want to change you need to reduce foundation again. Going from the American system to those system are no fun especially that you need to do foundation.