We didn't really identify a dream school going into recruiting. Now that he's there, it's his dream school. But in support of a couple of previous posts — he's a pitcher who blossomed as a junior and senior and committed in fall of his senior year, after a couple of people who committed early on decommitted, at least one after he and coaches "mutually decided it was no longer a good fit" — which I translated to "he stopped working."
Adbono is right — try to get realistic about what level your son can play at. Then identify some schools just above, just below and right at that level, and go after them. Hopefully the dream is in the mix, but if not, probably time to rework the dream.