Before you pick a color, confirm the diameter. 1.75 mm and 3.0 mm filament look nearly identical on the spool and will not feed through the wrong extruder.
DFRobot 1.75 mm PLA in 1 kg spools makes up the bulk of the group, in over 15 colors. Specialty options include PVA in both diameters, NinjaFlex flexible filament, Proto-Pasta conductive PLA, and wood-fill. OverLord printer spares and OverLord printers round out the hardware side.