Generic switch joycons

[Anotherdayanotherdollar]

Hi all!

Ds has a nintendo switch and mario kart. He's looking to get extra joycons to play 4 player version. Are there non Nintendo branded controllers available? Branded ones are almost €90!!
A quick look on amazon showed up lots of cases, but I think that's just a replacement cover?

[40Jem]

We have gone for wired controllers as the 2 extra ones. They were only 14.99 each and work fine.