Currently there are 11 native Telephoto Prime lenses for Nikon Z50 and 10 of these lenses are autofocus (AF) type.
Nikon Z50 doesn't have a sensor based image stabilization system but 5 of these Telephoto Prime lenses features optical image stabilization.
Since Nikon Z50 has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 10 Telephoto Prime lenses with Weather Sealings.