Do you'll have a feel for the type of college he wants/suits him? Large, small, close to home, away from home, city, urban, rural? Where do finances come into play (some schools have great Financial aid programs instead of academic or athletic scholarships)?
S got his first "on the cheap" oral offer from a close by school (decent baseball program) and wound up clear across the country as other options emerged towards his senior year.
Also, consider the ACT if his SAT doesn't satisfy him.
Sorry for the ask for more info, but the more info the more "accurate" the ideas coming to you.
With that first offer in hand, you can move from being a seller of a product to being a buyer and have some degree of control over the process. (I.E., You know someone wants him this early; that is a good indication others will likewise want him.)