The "legacy" mount used for decades on Nikon DSLRs (like the D850 or D7500). While older, these lenses are abundant and affordable on the used market.
The first step is ensuring the lens actually fits your camera. buy nikon lenses
Designed for the latest Nikon Z cameras (like the Z6 III or Z8). These lenses are sharper, lighter, and have a wider mount diameter for better low-light performance. The "legacy" mount used for decades on Nikon