My children are grown up now (last one just graduated).
They were in a private, secular college-preparatory
“country day school.”
It cost a fortune, but we loved it so much that I still volunteer there.
The “country day school” concept is one in which the child’s education, social, artistic, and athletic pursuits are all provided by the school. It started in the Colonial days when the people would sent their kids to school early in the morning and bring them home in the early evening.
Look for one near you.