Hmmm... I always thought about studying French. I'm able to communicate in 4 different languages (Bosnian, German, English & Spanish) and tbh English has always been my favourite one. Dunno why but it's just the most interesting language IMO I've come across so far, tho, my Engish isn't really good. It's not just due to that but also because of the fact that English is being spoken almost everywhere.