Never bought from Massdrop before, but they have a pretty good deal on the 8BitDo NES30 or FC30 Pro controller for only $ 32.99, currently $ 42.98 on Amazon or 23% off the Amazon price.

Also includes free shipping to anywhere in the USA.

Reviews are pretty good on these as Nintendo Switch controllers. They accept Paypal too, in case you’re worried about it being a scam website and not wanting to give them your CC info.