What is the cheapest good (preferably wireless) GameCube controller?

I really want to try a GameCube controller, but I don't want to cough up almost $80 for something I might not even use. I'm looking for something preferably wireless that will pair easily both to Bluetooth and to my switch. I'm fine with wired if it's quite a bit cheaper than wireless (including the needed adapter to actually use a wired controller) thanks in advance.