https://www.amazon.com/Controller-Charging-Nintendo-Switch-Wireless-rechargeable/dp/B0B5RYVHXG/

https://www.amazon.com/Nintendo-Switch-Charge-Stand-Officially-Licensed/dp/B01MZAUN5E/

So something like these two won't work?

In the questions both have conflicting answers, but several of those seem to be due to people not understanding about the NSO NES controllers.

FOUND IT : https://www.nintendo.com/store/products/pro-controller-and-joy-con-charging-dock/

I have the zelda BotW branded version of this dock. Looks identical otherwise. It's charging my NSO-edition NES Joycons right now.