Looking for assistance with a mapping project based on Germany

Greetings,

My team and I are working on a flight simulation project that focuses on Germany and parts of the adjacent countries. We are using OSM data for many uses, like placement of ground objects and texture mapping. For this purpose, it works extremely well, although we have found that there are gaps in the data. In particular, farmfields, which are a very important part of the German countryside, are greatly serviced by some clever use of the OSM data. In some places, we have almost 100% coverage, while in other areas, fields may not be mapped at all or are lacking in coverage in some areas. Obviously, because we are rasterizing these vector shapes at a large scale, it presents an issue, and we need more complete landuse data here.

I am primarily looking to get in touch with someone within the German OSM community (if one exists) to see if that community would be willing to assist in filling these gaps. It is something my team are prepared to do on our own, but it's a very large task and we are not particularly experienced in OSM mapping itself, not to mention we're a small indie team with limited resources.

Thanks!