The big towers in Midtown and Hudson Yards are handled by large firms with their own marketing departments, so that is rarely where an owner-led brokerage wins. The openings are smaller. Street retail across Brooklyn and Queens.
Loft offices in Dumbo and Williamsburg. Warehouse bays in Maspeth, Red Hook and the Meadowlands. Small buildings that an owner wants to sell. LoopNet and Crexi list a lot of this space, and brokers there pay to be seen.
Business owners also start on Google and type the place plus the kind of space. A tenant cares about loading access, ceiling height and foot traffic, so your pages should say those things plainly.
Long Island City and Jersey City matter because one subway or PATH ride reaches Manhattan, and tenants weigh that trip against Midtown rent.