@cityran. I caught up on threads when the forum was read only. I’m only now able to respond.
@ChoatieMom is right. We started touring in the summers when both DS and DD were 6th-7th grade. Most schools will offer tours without interviews for younger kids. You’ll still have to fill out inquiry forms, etc. Most of the better known schools are very used to accommodating those interested early.
We gleaned a lot of information from those early tours and were able to knock some schools off the list of contention.