Currently there are 39 native Wideangle Prime lenses for Sony A6300 and 25 of these lenses are autofocus (AF) type.
Sony A6300 doesn't have a sensor based image stabilization system but 1 of these Wideangle Prime lenses features optical image stabilization.
Since Sony A6300 has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 15 Wideangle Prime lenses with Weather Sealings.