Where to sell split ergo boards in Europe/ Netherlands/ Germany?

I know that this sub is not meant to sell keyboards. More than a year ago I had several keyboards to sell and posted them on r/mechmarket but got not any feedback/ interest, despite the keyboards being priced reasonably. It seems mechmarket is more geared towards sales in the US!?

I now have 3 keyboards which are looking for a new home. Are there other places I can post the keyboards I want to sell? Local Reddit channels? Discord? Or other sites?

In the past I sold the keyboards finally via the Dutch marktplaats site, but I guess there are better places to reach people actually interested in split keyboards?