Based on this product's specifications, here are some alternatives and similar models
Camera filter K&F Star (2-in-1) for 82 mm lenses — Star (X4 & X8) K&F Concept
Summary description:
K&F Concept Star 2-in-1 camera filter set for 82 mm lenses combines star filter effects (X4 and X8) in one solution. Designed to screw onto 82 mm threaded lens fronts, the filters produce cross-shaped light diffraction for highlights and point sources, enhancing night, cityscape, and portrait photography. Useful for creative light effects and long-exposure scenes.