Based on this product's specifications, here are some alternatives and similar models
3D printer filament c-tech Premium Line PLA Grey Aluminum RAL9007 1.75 mm 1 kg
Summary description:
c-tech Premium Line PLA filament in Grey Aluminum (RAL9007) is a 1.75 mm, 1 kg spool designed for FDM/FFF 3D printers. Made from PLA, it offers ease of printing, good layer adhesion and low warping for prototypes, hobby parts and decorative objects. Suitable for users seeking a metallic grey finish without special printer modifications.