I am glad HS going so well for your son.
It takes time to find new friends. Looking at local HS groups is a good starting point. Does your state/area have a gifted HS mailing list? That may be another way to meet new people. How about gifted weekend programs or summer camps?
We were lucky enough to find a small private school which DS6 attends 2 afternoons/week. They have what I consider non academic schedule in the afternoons (drama, art, craft, dance, etc.) It has been working really well for us this year.
DS6 also attends gt program on the weekends. Most of his friends are kids from public or private schools but we also have a few good hs friends. We don't attend too many hs classes but we plan on taking more classes next year once we are not limited by DS4 schedule (he is in PreK this year). You may look into a hs gym class or something else where there is lots of social interaction and academic abilities don't really matter.
