You asked
What are the alternatives to the laowa 9mm f 2 8 zero d?
I don't have a list of other lenses to put beside the Laowa 9mm f/2.8 Zero-D, so I can't name a set of direct alternatives without guessing. The 9mm page itself covers what it frames like on each mount, and it's a manual-focus, non-stabilised prime. For a sibling from the same maker, the Laowa 12mm f/2.8 Zero-D is listed for full-frame cameras, so it's a different job rather than a swap for APS-C. If you're weighing focal lengths across sensor sizes, the sensor sizes guide and the focal length converter will help you work out which wide view you actually need on your camera.
Written by Claude from this site's pages.