@PABaseball yes right now he is in current conversations with mid D1/Patriot League type schools, a few of the Ivies, D3s. He plays in a well-known (by east coast/Mid Atlantic college coaches) competitive high school prep league that regularly sends guys to the Dukes, UVAs, Pitts, Clemsons, Marylands, etc (not where my son is considering, but for context) and his coach is fairly connected
Ok that helps. Unfortunately, the competitive HS conference your son plays in is likely irrelevant to the talent in said conference. Those guys who are going to the P5 schools you mentioned were likely sold to those schools by their travel coaches. It's more likely they just happen to play in the conference than it is likely that the conference is where these kids were seen.
Now as far as getting new looks. Yeah it can't hurt to email anybody. But what really gets college coaches to shoe up is a travel coach or a someone connected picking up a phone and calling the coaches at _______ letting them know you're going to be down there you'll send them your schedule. They get a ton of emails. They get so many that they can just rely on their travel ball contacts to get them the guys they need. If his coach is fairly connected, he needs to prove it.
From what I've seen, as recently as a year ago, there aren't as many lower level D1s from the north traveling down as they had in the past. Maybe covid changed that, maybe it's not worth it for them. I don't know but I would make sure the schools he's talking to are going to be there. I have always seen Ivys there, but less on the Patriot/GW type schools.
As far as D3s I would say unless they're within a 2-3 hour drive they would be nonexistent down there.