Just search for "load resistor" in L*zada or Sh0p33 madami results. Get the one that has the heatsink already integrated so you don't have to worry about heat.

Meron din LED turn signal bulbs that don't require decoders or resistors, but these tend to be super bright because the maker loads them with a whole bunch of LEDs to make up the required power consumption.

FD/8th-gen medyo mahirap palitan yung flasher module it's buried somewhere in your MICU.