Based on this product's specifications, here are some alternatives and similar models
Clear protective case for Samsung Galaxy M51 by 3MK — transparent TPU cover
Summary description:
Transparent protective case by 3MK designed for the Samsung Galaxy M51. Made from clear TPU material to preserve phone appearance while providing basic protection against scratches, minor drops and everyday wear. Precise cutouts allow access to ports, buttons and camera. Lightweight, slim profile ideal for daily use and maintaining original phone aesthetics.