Soccer players are typically recruited out of elite clubs rather than HS. His club coach should be able to give him an idea of which schools would be a good fit for him for soccer. If they are also of interest academically, he should contact the coach to see if he fits into recruiting plans. They may want film or want him to attend an ID camp or maybe they’ll see him at a tournament.
It is possible that he will choose a school purely on academics. He can play club or intramural soccer if he isn’t recruitable at those schools. For many players, this is a calculation they need to make. Sounds like your son has his priorities in order!