Currently there are 20 native Telephoto Prime lenses for Sony A7R V and 15 of these lenses are autofocus (AF) type.
A7R V also has a sensor based image stabilization system which means that all of these lenses will be stabilized when used on A7R V.
Since Sony A7R V has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 15 Telephoto Prime lenses with Weather Sealings.