Currently there are 48 native Wideangle Prime lenses for Nikon Df and 22 of these lenses are autofocus (AF) type.
Nikon Df doesn't have a sensor based image stabilization system but 1 of these Wideangle Prime lenses features optical image stabilization.
Since Nikon Df has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 12 Wideangle Prime lenses with Weather Sealings.