Currently there are 12 native Wideangle Zoom lenses for Sony A7R and 11 of these lenses are autofocus (AF) type.
Sony A7R doesn't have a sensor based image stabilization system but 1 of these Wideangle 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 11 Wideangle Zoom lenses with Weather Sealings.