Look into New Bedford / Fairhaven, on Buzzards bay.
Few hour sail to CC and MV thru Woods Hole.
Although very much a
commercial fishing port NB has many seasonal/ transient moorings
for recreational sailors both inside and outside the
hurricane barrier.
I have stayed in
marinas on the Fairhaven side and considered this as a good port if
I were to leave
boat for a few weeks as you are considering.
NB has a great website...Port of New Bedford
also
phone Penny @ 508 979 1456 or 508 961 3000 ??(from my notes so check site)
actually thinking seasonal moorings @ $150. but never confirmed.
From your neighbor
Long Island Sound sailor from Steppingstone marina