Chinese-German ob English tandem (Frankfurt)

Hey there,
I've been learning Mandarin Chinese for a couple of years, have spent an exchange year in Taipei and am now looking at ways to get back into the language, or at least not forget everything I've learned. Anybody interested in a language tandem? I'm native German and English, so either language would be fine with me.
I'm a PhD student in counter-terrorism studies and interested in sports and music in my free time, so if you think we might have something to chat about, I'd be extremely happy to hear from you!
Best wishes and 新年快樂！
Barbara