Currently there are 19 native Telephoto Zoom lenses for Sony A6300 and 18 of these lenses are autofocus (AF) type.
Sony A6300 doesn't have a sensor based image stabilization system but 14 of these Telephoto Zoom lenses features optical image stabilization.
Since Sony A6300 has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 17 Telephoto Zoom lenses with Weather Sealings.