I’ll just add good luck to your child in finding a great school that fits and this little anecdote. My wife a professor at a school ranked above 100 in the latest USNEWS rankings has a former TA that earned her BS in Math/Physics at this school and went on to earn a prestigious scholarship to get Masters in the UK (OxBridge) and then get PhD in Physics at one of the top Ivy league schools for Physics and is now doing a post-doc at another top Ivy. So let your child know that not attending one of the ‘top’ UG schools will in no way stop him from achieving his goals.
@Mom2aphysicsgeek can give you a personal anecdote of her child’s journey as a Physics major at Alabama where your son’s 35 ACT and GPA can get him a nice merit award.