Based on this product's specifications, here are some alternatives and similar models
Protective case for Pixel Buds Pro 2, Spigen — TPU, black, 45 g
Summary description:
Spigen protective case designed for Pixel Buds Pro 2, made from thermoplastic polyurethane (TPU) in black. Weighing 45 g, it provides slim, lightweight protection against scratches and minor impacts while preserving access to charging and controls. Suitable for everyday use to keep earbuds' charging case safe and maintain original functionality.