One out of the box idea that we have done is to host someone from the country you're interested in to stay with you for a while. Lions clubs around the country frequently have 3 week hosting opportunities. These are usually for youth, but I have also hosted a 56 yr. old lady from Italy. We got to know each other and when she went home she invited me to stay with her. I will also say that this is probably a long shot, but worth checking out. To be in a country with someone who lives there is one of the most authentic experiences you can have.