Currently there are 17 native Wideangle Zoom lenses for Nikon D6 and all of these lenses are autofocus (AF) type.
Nikon D6 doesn't have a sensor based image stabilization system but 3 of these Wideangle Zoom lenses features optical image stabilization.
Since Nikon D6 has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 6 Wideangle Zoom lenses with Weather Sealings.