Looking for Amer. Families for Brazilian Friends! (Porto Alegre)

Good afternoon. I'm an American living in Wisconsin. For seven months, I have had the privilege of getting to know a very nice Brazilian family that lived across the street from us in a suburb of Milwaukee. The family has just returned to Porto Alegre. The parents are both professors. I have encouraged them to get to know some Americans living in the city so they can help the Americans with whatever they need and so that they can continue using and improving their English. I wonder if there are people here who would like such a friendship, in which there would be mutual benefit as you learn how to live in Porto Alegre. I will be very interested in a response from fellow Americans!! Thank you!! Best wishes to each of you, Heather