He has nothing to lose by filling out recruitment questionnaires at D3 schools. For example:
CMU: Men's Soccer Recruit Questionnaire - Carnegie Mellon University Athletics
Emory: Emory
Lafayette: Welcome to ARMS
Recruitment could certainly make the difference between getting in and not, at schools like this.
I keep going back and forth about suggesting College of Wooster, as I’m not sure it’s above the curve for you in terms of prestige+distance… but it’s really excellent for STEM and pre-health - particularly strong in student research - and it could be a nice environment for him (small, supportive). Recruiting Form - The College of Wooster