Where Do I Find People Interested In A Mutual Room Transfer?

I have a triple in Maple and wanted to swap with a guy who had a single in Hansee. He said that he would swap as soon as he got approved to live in an engineering living leaning community. He then swapped with another person without telling me. By the time I figured this out the forum had ended. Does anyone know where I could find people interested in a room swap now that the forum is closed? Thanks for any help.