Congrats playball. My 2 cents. Sounds like your son is talented. I would start now by looking at what school is going to give him the best shot at playing. I know a couple of 90 plus kids that committed and joined high level schools only to sit the bench freshman year. Didn't redshirt and know real path going into his sophomore year(6'5" 225lb). Problem is that these high level schools get the high level guys, all 90 plus guys. I'm not saying your son is going to sit, but I would look at the history of the schools and see how play time for freshmen are getting. Keep in mind that a new group of studs will be coming in next year and the next year.
As its been said here forever, "go where he is loved and will be an impact player early".
It sounds like your son will have a lot of choices. Just do your homework, research the programs and go where he will play.
Good luck, it's a bit of a wild ride.