Currently there are 15 native Standard Zoom lenses for Sony A7R and 14 of these lenses are autofocus (AF) type.
Sony A7R doesn't have a sensor based image stabilization system but 4 of these Standard Zoom lenses features optical image stabilization.
Since Sony A7R has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 13 Standard Zoom lenses with Weather Sealings.