Gaijin Houses?

Have you stayed at a guest house in Japan? A traveler to Japan asks, "We are a couple travelling in japan and we have a room in a guesthouse booked in tokyo for 2 months and we were wondering whether anyone knows of any other cities that have gaijin houses which we could move on to afterwards or whether it would be better to stay longer in tokyo and use it as a base for travelling to other areas?" Suggestions?
Guest Houses in Japan
Japan Accommodations