Currently there are 16 native Standard Prime lenses for OM System OM-5 II and 11 of these lenses are autofocus (AF) type.
OM-5 Mark II also has a sensor based image stabilization system which means that all of these lenses will be stabilized when used on OM-5 Mark II.
Since OM System OM-5 II has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 4 Standard Prime lenses with Weather Sealings.