You can go to AllPredatorcalls.com and look at hundreds and most of them will be good.
The Verminator calls are good and popular, if you like open reed, Dan Thompsons are good if you prefer enclosed reeds. Really not a bad call on the market. They all will work, but finding the one that you like is the tough part.
If you want to try a custom call, go to PredatorMasters.com and go to the custom call makers forum and you'll see some fine craftsmanship and lots of fine calls to choose from.