Does anybody know where I would find a list of F16 / open class races for the area of Germany, Netherlands?

We just came back from China, where we had to leave our Taipan 4.9. We are trying to decide what class to sail next saison and I think F16 would be the right choice. One issue when deciding for a class is the infrastucture of races. Since we have only raced dinghies before in Germany I wonder where to find a list of races open for F16 type boats. I have found some information on the page of the Catamaranvereniging Hellecat, but I haven't found anything for Germany yet