Before I sent him to a PG showcase or any other showcase, I'd make sure that the schools on your list are going to be there. If they aren't, there's no point. I agree with previous posts, if you develop a list of target schools, whether they are d1,2, or 3, contact them directly- many will have camps over the holidays, or at a minimum will be open to hosting a non official visit. You'll be much more efficient, learn more about he schools and they'll get to know your son better.