All kiddies with their dads/moms/caretakers are invited to visit Old St. Nick on the 8th floor of Macy’s Herald Square. It’s at 151 West 34th Street in midtown Manhattan.
It’s free to all but there are optional professional photos available with packages beginning at $20.99
Reservations are available through their Express Pass line free of charge but are subject to availability. Mind you, one IS NOT needed. You could always just show up for the general line on the 8th floor to visit Santa.