USB C64 Joystick adapter (for emulator) - Commodore Remix
USB Joystick Adapters – breadbox64.com
iNNEXT USB Game Controller Review - Lyonsden Blog
C64 Joystick Adapter - Share Project - PCBWay
GitHub - tebl/C64-JoyKEY: WASD-style joystick for vintage computers. With an added Arduino Pro Micro you can use it as a USB-keyboard, so if you wanted a DIY streamdeck or Macro-keyboard - then
Competition Pro USB Joystick +Game-Collection 99 best of C64 Classix | SL-6603-TWT
Connect USB Joystick to Commodore C64 - Hackster.io