interested mom,
We know who the top teams are in all those areas. Or you can look many of them up by going to this site. Here
Sounds like your son is very talented, but to me a late bloomer is not someone 15 or 16 years old who is starting for the varsity as a sophomore. Many players do not “blossom” until they are out of high school. Those are late bloomers ie Billy Wagner.
Best of luck