Currently there are 41 native Standard Prime lenses for Sony A7S II and 32 of these lenses are autofocus (AF) type.
A7S II also has a sensor based image stabilization system which means that all of these lenses will be stabilized when used on A7S II.
Since Sony A7S II has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 21 Standard Prime lenses with Weather Sealings.