How to use a Classic Controller (Wii or NES/SNES Classic) on the Switch : r/NintendoSwitch
Wii Classic Controller Pro (White)
Mini Classic Controller Pro For Nintendo For Wii Remote Accessories Video Games Joystick For Wii Black White Gamepad|joystick joysticks|controller gamepadclassic pro - AliExpress
Wii Classic Controller vs. classic SNES controller | Engadget
The mini NES Classic controller works with your Wii U Virtual Console games - Polygon
Classic Wii controller Accessories - SOSav English
CableVantage Pro Classic Game Controller Pad Console Joypad For Nintendo Wii Remote Black - Walmart.com