Hi! It's been 6 years since I was there. So things have probably changed a lot. However, when I was there, there was an organized homeschool group in Frankfurt as well as one in Wiesbaden. They are nearby to Darmstadt. There is also a big group in Kaiserslautern(sp? I think you can still look them up online by using google) but that is a little bit more of a drive.