https://www.amazon.com/Nintendo-Red-Nunchuk-Wii-U/dp/B0046ECA0Y/ref=sr_1_15?dchild=1&keywords=nintendo+wii+nunchuk&qid=1598192446&sr=8-15
Ordered one of these, arrived quickly and it's in great condition.
If I had paid an extra three dollars then I woulda got a brand new one for only $20.