There's a website that most people check out detailing which programs are looking for non-PGY-Is. I forgot which one it is, anyone here remember?
However, from what I've heard, once a program makes it known--they get barraged with hundreds of phone calls--instantly. My program director told me he did that once and the coordinator got overly harassed. He decided he would never put in an announcement open to the public again.
You're still going to find programs looking for a non PGY-I that's not willing to put advertise. You're going to have to make a lot of phone calls &/or see what some of the residency boards mention. This is probably the best one to look in.