Based on this product's specifications, here are some alternatives and similar models
PLA Silk 1.75 mm 1 kg filament Spectrum 81405 — Royal Amethyst multicolour
Summary description:
Spectrum Filaments 81405 is a 1 kg spool of Polylactic acid (PLA) Silk 3D printing filament in Royal Amethyst multicolour with 1.75 mm diameter. Suited for FDM/FFF printers, silk PLA produces glossy, satin-like surface finishes and is ideal for decorative parts, prototypes and visual models where improved appearance is required.