Most boarding schools will have a sports requirement, but if he really dislikes sports, you might want to dig deeper into the school’s culture and into the flexibility of the requirements.
You’ve mentioned four very well known schools, but there are dozens more that are worth researching and learning about. All will have stellar teachers, small class sizes, and lots of opportunity.
Think about whether a large school that feels like a small college and offers lots of autonomy will serve him best… or whether a smaller school might be a better fit. There is a dedicated thread somewhere about the pros and cons of each.
Some additional New England schools to consider: Tabor Academy, St. Mark’s School, Berkshire, Millbrook, Darrow, Northfield Mount Hermon…
A mid-Atlantic school with a particularly kind and inclusive culture: St. Andrew’s School in Delaware. George School is also worth considering.
And if your kid wants a break from the winter cold, there’s always Cate, Thacher, and Midland.
Poke around the websites from the schools above and see what you think.
Will you need financial aid to be able to attend?