Where do the Germans live in the Atlanta area

Hello Atlanta , I am Ingo and me and my Family live in Florida for 8 years. We are considering to move up to the Atlanta area and i was wondering what area is best for a young family with 2 kids.

I am also curious where the highest population of Germans lives. We would like to send our kids to the German school which is in Cobb Country - I assume the most Germans live in Cobb county ?! - please correct me if i am wrong.

Thanks