And I always wanted a red and white but my Gwen is a sable and wouldn't trade her. So maybe be open to all colours.
Yup, check Petfinder and also look for the corgi club in that area. They should have a rescue operation. I found Max thru the club that serves my area.
I just search for the club serving the area. Here is the link..at the top of the page where it's lists the different areas of the club you will Rescue. Good luck!
You could also try www.adoptapet.com
As for the chewing....well, dogs chew for a variety of reasons, not only because they're teething. So, it's not a guarantee that an older dog won't chew.
Try the Lakeshore Pembroke Welsh Corgi Rescue...
I would check Humane Societies also...you never know:)