I wish Cleo had a brother. I could use a body that color for a Dr Bashir/Sid doll.
As for finding them you have to look anywhere and everywhere that could possibly sell toys. Hit the stores when they first open, in the middle of the night, and find out when they restock the shelves. Some wait until they open to do so. And if you show good karma by only taking what you need and giving other people a chance to find one you get rewarded. Somehow dolls know.