Add Harvard next door to Boxborough. If I didn’t have to commute, I’d easily live in Harvard. Beautiful town that feels like it is the berkshires dropped into Eastern MA.

Would add Hopkinton, Westbrough, Northborough towns here. Hopkinton has best schools, but I love the westborough / northborough vibes.

Might find something in Carlisle as well, although I think that is pricier.

Sherborn has top end schools but is significantly cheaper than Dover (though still expensive). But Sherborn seems to be returning to pre pandemic levels where no houses go up for sale there