Where can I find an electrician trade school in NYC?
The best place for you to find information on becoming an electrician is the electrical workers' union. Check this page, and note the name and number of the Director of Training. Mr. Maraia would seem to be the ideal person to get you going in your education.
When I did a search online, this school showed up, even though I specified New York city.
Hudson Electrical Institute
900 Bergen Ave Ste 3
Jersey City, NJ 07306