Looking at my owners manual, it would seem that the '09 Forester, with the manual transmission, can be flat towed. With the AT, it is limited by speed (30 kph) and distance (50 kms), so not really an option. Curb weight is 3,250 pounds according to Edmunds for the 5 speed. But I would check with a dealership just to make sure.
Geo Trackers and Suzukis seem to be popular dinghies around here.