SUNLU 16 Color PLA Filament Bundle, 250g per Spool,4kg Total,Black+White+Grey+Red+Klein Blue+Green+Yellow+Sunny Orange+Coffee Brown+Beige+Olive Green+Oak+Lavender Purple+Cyan+Bone White+Magenta

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.