There's only one brand of Pill Pockets. They're made by Greenies. There are, however, two different flavors - salmon and chicken. I recommend you get one package of each flavor and see how Misty likes them.
Pill Pockets also come in Duck & Pea for cats with allergies.
There's also another product called Flavor-Doh. It comes in a container and you scoop out a little and wrap it around the pill. You probably have to order it online, it's not as readily available as pill pockets.