It's fairly certain my 2017 will end up at 1 of 2 SSC schools. He's about 85% sure that he doesn't want to play in college, but we've given some attention to the baseball programs - just in case.
I don't know what your time frame is, but there are a few options if you have time...
Showball mentioned above is a good option. There are a lot of schools in attendance. It's a camp - not a showcase, so the players do get to interact with the coaches a bit.
There are smaller camps put on by Top96 (top96baseball.com) that are usually run out of Lynn University in Boca Raton. Not sure when the next is, but they always have good representation from the SSC schools.
Prospect Connect (prospectconnect.org) puts on small showcases that usually has many SSC schools in attendance as well.
Of course as PG mentioned, WWBA will have everyone there.
My son is looking to stay in S. Florida for college (he's a beach kid) so we've visited many of the SSC schools. Feel free to ask if you have any specific questions. If I don't know the answer, I probably know someone who does.