SUNLU High Speed PLA Meta Filament, 1KG PLA 3D Printer Filament, Tougher Neatly Wound 3D Filament, Dimensional Accuracy +/-, Fits for Most FDM 3D Printers, 1KG Spool(2.2lbs), Red

Well-known as much for their S1/S2 filament dryers as for the filament itself. The material catalog — PLA, PETG, ABS, TPU, silk — is broad and frequently discounted on Amazon. Solid all-around option.