I personally have heard amazing things about Edison, NJ.
The community has a very nice out of town feel, and still is
only 45 minutes from the city, Brooklyn, and Lakewood. You get the benefits of both!
They have all types of Jews there from Yeshivish to Modern and they all get along very nicely. They have a “Yeshivish” elementary school which is probably along the lines of what you are looking for.
They have a Bais Yaakov in Edison and the Edison Yeshiva. If the Yeshiva is too Yeshivish for you then there are places within driving distances to commute too or your son can dorm in a NY Yeshiva and come home whenever you need him too.
They have a decent number of restaurants and if you really need more (which it seems you don’t) there are plenty within a reasonable driving distance.
As an extra bonus it’s located in NJ where gas is much cheaper then many other places and they fill up for you!
It is definitely a community I would seriously look into.