In Rhode Island, the locals are PR-2 and PR-3. PR-3 typically goes out first around 7-ish and switches the Port of Providence, Motiva, and other businesses on the NEC along the way. PR-2 goes out shortly after and can go up to Woonsocket as well as switch the East Providence secondary through Pawtucket (Bennett Hwy) into E.Prov and up the East Junction to the state line (as req'd.). I agree with NYNE, PR-2 is the more photo-friendly of the 2. PRWO (the road freight from Providence to Worcester) goes on duty at 19:00 and can occasionally get out of town before dark.
Presuming you are only concerned with daylight operations, here's what's available elsewhere:
WX-1 - local switcher in and around Worcester
NR-2 - out of Plainfield switches the NEC between New Haven and Groton
NR-3 - local switcher in and around Plainfield
CT-1 / NH-1 - local out of New Haven.
These all go on duty between 7:00 and 8:00 or so. I'm sure some of the posters from CT. can provide more detail on locations and photo-ops.