If all your son’s choices are too expensive - or if you fear they might be, you still have time to apply to cheaper schools. For a lot it’s too late but not for all. If you are in that pickle, let us know - and we can recommend some - as a back up.
Make sure you do the net price calculators though - a school like Rochester offers merit…not easy but offers as does SU. Tufts does not.
If you have need, Tufts and Rochester will meet it. If you don’t, Tufts is pricier than Rochester and gives zero merit aid.
So you do need to do the net price calculator - but then hit your home state schools for an app if not too late - and beyond that we can give you cheap recommendations - regionally or nationally - you’ll get your best costs going South or West - like Alabama or Arizona or smaller school UAH - and that’s just a couple - there’s many many more - and he can still apply.
I would sit down this weekend - get an entire picture of where you’ve applied to, the likelihood of affording the easier schools - and decide if you need more.
You can google any school and cost of attendance and you’ll get their sheet of total expenses.
You can also find on their tuition / aid tabs and all will have net price calculators. Just make sure you fill them out accurately.
Good luck.