Lots of options and it def depends on the environment you want as a backdrop, but imo consider: Salem, Plum Island, Halibut Point, almost anywhere in Rockport/Gloucester area, but if you like the rocky coast/lobster fishing village thing check out Lanes Cove (morning is best for low winds and calm seas… and great sunrise obviously), castle hill/Crane estate, Stone tower in Lynn woods, and/or if you have a professional local photog ask them as well. They’ll def have some ideas likely with sample shots of other couples and will know the best times/conditions to hit each spot.