Annette, this is where I see some of the peonies that I've ordered.http://www.petaltalk-jean.com/2014/06/plethora-of-peonies-part-one.html
If you browse her blog, you'll see some more interesting cultivars.
I have Kopper Kettle bought a few years ago as potted plant from Monrovia. Let me know what you think of KK when it will bloom for you.