There are a dizzying array of excellent choices available in New York City, but be prepared to open your wallet. Rates are much higher, with $400 to $600 per hour being the norm.
I’d recommend
Marianna the Muse,
Aubree Addison, and
Natalia Santiago. Some of them offer better rates through P411 than on their websites.
Many agencies exist, but they can be very hit and miss, as well as deceptive in their photo presentations. The most reliable are BelleDeJourNYC and Touring Girls. I'd suggest the independent option over an agency.
Good luck, and happy hunting!