You can use the Smash Brothers Gamecube adapter in portable mode with a USB C adapter (Rumble works too) : r/NintendoSwitch
Wireless GameCube Controllers for Switch : r/NintendoSwitch
Smash bros ultimate gamecube controller available for preorder on amazon us ($30 usd) : r/NintendoSwitch
Amazon.com: 4 Controllers for Gamecube,with 4 Extension Cables and 4-Port USB Adapter for Switch PC Wii U Console (BBRG) : Video Games
GameCube controller support comes to Nintendo Switch - Polygon
Thought id share this! Wireless Gamecube controller for Switch from AliExpress 😄 : r/Switch
Will this specific adapter work with Dolphin? It's a Nintendo Switch Gamecube adapter and appears to be a first party one : r/DolphinEmulator
Just integrated a Switch dock into a GameCube. Controller ports and LED works too! : r/NintendoSwitch
Just found out the Wii-U adapter works on switch! It's time to get serious about smash. : r/gaming
I turned a $20 broken Gamecube into a Switch dock with working original controller ports! : r/Gamecube
I figured out a way of connecting GameCube Controllers to Nintendo Switch without the Dock, all you need is a USB to USB C Adapter and Nintendo's New adjustable kickstand that's releasing
How to Connect a GameCube Controller to the Switch - Howchoo
LAHD] Playing Link's Awakening with a Gamecube controller helps with the 8-directional movement : r/zelda
Anyone else use a Gamecube controller? (I usually play on Xbox but i'm in rehab rn and only have my switch) : r/RocketLeague
Officially-Licensed GameCube Controllers Are On The Way For Switch | Nintendo Life
The GameCube adapater works in handheld mode too! : r/NintendoSwitch
Tip: if you have an OTG connector (which come with many Android phones), it can be used with the GameCube controller adapter for portability. : r/SmashBrosUltimate
Want to play Super Mario Sunshine with a GameCube controller with original controls on Switch? You can remap controls for the GameCube controller with the 8bitdo Gbros. adapter : r/NintendoSwitch
The Gamecube controller is my favourite it fits perfectly in your hand it's comfortable and the analog stick is amazing! a well made controller. : r/ Gamecube
Do not buy the power A wireless gamecube controller. 2 months in. Took excellent care of it, never dropped it, and stored it in a beats case. Smash is unplayable : r/smashbros
GameCube Controller Adapter up for Pre-Order for $20 for the Switch : r/NintendoSwitch
Walmart] PowerA Wireless Gamecube Controller for Nintendo Switch - $36 (YMMV) : r/NintendoSwitchDeals
Brook "Mini GameCube" GameCube controller to switch adapter - Mini review : r/NintendoSwitch
Smash Gamecube Controller VS Nintendo Switch Pro Controller? Which one will you take into battle when Super Smash Bros Ultimate gets released? : r/SmashBrosUltimate
GameCube controller with cuphead it actually kinda works pretty good : r/ Switch
Gamecube Nintendo Switch Dock I made. : r/NintendoSwitch
Power wireless GameCube(silver) comparison to other controllers in case anyone wanted a visual comparison : r/NintendoSwitch