SUNLU PLA+2.0 3D Printer Filament, Upgrade PLA+ Filament, Tougher and Stronger, Neatly Wound PLA Plus Filament, Dimensional Accuracy +/-, 1KG Spool(2.2lbs), Black

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.