Beverly
Leominster MA
Lowell MA
Newburyport
Whittier
Newburyport and Beverly are on the coast north of Boston. People leaving Boston in a hurry would go through those towns up route 95. Lowell is northwest of Boston. Again, people leaving Boston in a hurry would go up Rte 93 in that direction. Similarly, Leominster is about an hour west of Boston, located on Rte 2.
Interestingly they don't list a city in MA that is located out the Mass Turnpike, i.e., Springfield, MA. It is close to Hartford and on Rte 91 - that highway would be very crowded from New Yorkers and Connecticute folks. For that reason Bostonians would probably head north or northwest.
You have really put it together!
Stamford/Greenwich---on I 95--- major escape route for people heading East out of NYC