Go to OKC.
There's a number of people in Ak. Very few of them regularly post on here.
There was a poly-group on Meet-up, but the primary organizer I believe had to quit when he returned to college and as a co-organizer I bailed a few months prior. There however is still a fairly large group that socializes in Anchorage.
I myself am unavailable as is my boyfriend. My husband isn't unavailable, but he's not really looking for anyone either. But, good luck and welcome to the board.