This a very helpful blog created by someone who has dealt with the challenges of getting someone in a wheelchair around NYC. There are personal tips for entertainment, restaurants, and accommodations that you might want to consider. Accessible Travel NYC is just a click below helping make the city experience easier to navigate for you and your family.
http://www.accessibletravelnyc.com/about
https://www.cityguideny.com/article/Visiting-NYC-with-Special-Needs