kexcelled Silk PLA Filament Gold Yellow 3D Printer Filament Silk & Metallic Shiny Glossy Surface,1kg Spool (2.2lbs),Fit Most FDM Printer, Non-Tangling,Clog-Free

Amazon-only with a wide SKU list: PLA through TPU, including silk and specialty variants. Prices sit at the low end; quality is consistent enough for general use.