The “Shadchan” you are talking about should probably be the boy’s 8th grade rebbi. Over the year he observes what kind of bachur he is, and with his vast knowledge of Yeshivas he has a good chance of knowing just the right one.
If he’s not a troubled teen, B”H, then he should have a rebbi he can consult regarding this.
CRuzer, You are correct but the problem is that being that we live “out of town” the Rebbi is somewhat limited to knowledge of the Yeshiva he went to as well as smaller Yeshivos.
Rabbi Gluck has helped us find a match for non-troubled teens. He met our son in an informal interview session & made several suggestions for us to follow up on. It was a good start to rule out inappropriate places. We had a similar experience with Rabbi Binyamin Strauss in Lakewood.