Per the NCAA site:

An evaluation period is that period of time when it is permissible for authorized athletics department staff members to be involved in off-campus activities designed to assess the academic qualifications and playing ability of prospective student athletes. No in-person, off-campus recruiting contacts shall be made with the prospective student-athlete during an evaluation period.

A shoe circuit is an invite-only league, run either by a major shoe company or a large event operator. The best way to align your child with one of the programs in these leagues is to find the nearest few teams and reach out about tryouts or open workouts.