You don't list MA as one of your targeted states but you should! We just returned from a week on Cape Cod at Nickerson SP. No hookups but it was $22 a night (resident fee).
Most NE state parks do not have hookups, but if you are outfitted for dry camping, there are some beautiful places to stay. I'd also check out the VT SP websites as they have interactive maps that show you photos of the actual sites when you click on the site map.
Theo & Carol
2007 GoldenDoodle ("Cooper")
2020 Rockwood Roo 23IKSS
2015 F-150 4WD XLT SCab, 5.0L, 3.73, 36gal, HD Towing Pkg (53A), 1,980lb Payload