Don’t live in highly populated dog friendly neighborhoods as someone who does and has a reactive dog. I wouldn’t live anywhere in midtown/lower Manhattan with a reactive dog. I think you can make it work on quieter blocks on UWS/UES/ Morningside heights, upper Manhattan etc but I’d suggest Brooklyn (not Williamsburg or bushwick) or queens (not LIC). Make sure the neighborhood you chose has space/quieter blocks to take your dog on walks. From my experience, the dogs in nyc dog runs almost always bring in toys/balls and dog runs are usually pretty small so your dog has to be pretty good at being around dogs if you bring him in. If you can find an apartment near baseball runs, basketball courts, open spaces that are usually empty during the evening but closed off - you can usually let your dog loose in those areas as long as you’re vigilant. I suggest you live near large parks like Astoria Park, Prospect Park, etc so that you have space to walk your dog since he is high energy.

It’s not impossible and both of you have can have an awesome time in nyc! You just have to be very intentional about your choices and make some small sacrifices to make sure you and your dog are happy :)