Offering English lessons/tandem language exchange

I’m a native English speaker and a certified TEFL instructor. I’m hoping to learn Arabic and German and would love to do an exchange with either of these languages. I can commit to one lesson a week. If there isn’t any uptake for a tandem partner, I’m happy to just provide English lessons if anyone’s interested in learning. I’d ideally like to meet in Kreuzberg or Mitte but I’m flexible about the location. Thanks