Based on this product's specifications, here are some alternatives and similar models
Diffusion Filter K&F HD Black 72 mm (1/8) for Lens — K&F SB10909
Summary description:
K&F HD Black diffusion filter, 72 mm thread, 1/8 strength (model SB10909), designed to soften highlights and reduce contrast for portrait and cinematic photography. Fits lenses with 72 mm filter thread and provides controlled diffusion without strong color cast. Useful for smoothing skin tones, reducing specular highlights and achieving a subtle glow effect in studio and location shooting.