Based on this product's specifications, here are some alternatives and similar models
Mobile phone case Spigen Rugged Armor for Poco F4 / Redmi K40S, TPU cover, 6.67" (16.9 cm), Black
Summary description:
Spigen Rugged Armor is a TPU cover designed for Xiaomi-compatible models Poco F4 and Redmi K40S with a maximum screen size of 6.67" (16.9 cm). The form-fitting protective case provides edge and back protection, precise cutouts for ports and camera, and a matte monochrome black finish. Suitable for everyday impact and scratch protection while preserving device access and wireless charging compatibility where supported.