The majority of Nikon-mount fast telephoto zoom lenses are designed for FX (full-frame) cameras, although the Sigma 50-100mm (see below) is a notable exception. You can put a 70-200mm f/2.8 lens on your DX (APS-C) camera body, where you’ll get an extended 105-300mm telephoto range, still with that fast, constant f/2.8 aperture across the zoom range.
If you go DSLR, F-mount lenses are the only option. For mirrorless bodies, you can either invest in the recently launched Nikon Z 70-200mm f/2.8 VR S, or use an F-mount lens via an FTZ mount adapter. Naturally, a native Z-mount lens is the more obvious choice, but you can still expect great performance with a premium F-mount lens.