MOMA  has two kids' art labs and a terrific courtyard; it also has a place for working with phone chargers and WIFI. It is about a 10-minute walk from Central Park. Unfortunately, they do not let you bring food or water into the Museum. They have multiple restaurants and cafes. They have a breastfeeding and pumping pod on the main level. Backpacks must be worn in the front so try not to bring too much stuff although the coat and bag check is now open and I am told by the staff that lockers are coming.  

moma - Museum of Modern Art