Currently there are 7 native Standard Prime lenses for Canon R8 and 4 of these lenses are autofocus (AF) type.
Canon R8 doesn't have a sensor based image stabilization system and none of these lenses have optical Image Stabilization.
Since Canon R8 has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 4 Standard Prime lenses with Weather Sealings.