If you are looking for calls you have came to the right place. This site has a better selection of good calls than anywhere else you will find.
The type of call is really up to you. I'm partial to friction calls. Aluminum, Glass, crystal or slate. They are easy to learn on, are very versitile and you have a lot of options. Check out the classifieds here and I'm sure you can find something you like. Don't be afraid to call any of the call makers either. Most like to talk turkey hunting as much as making calls and all of them want you to get something that you are comfortable with and can be successful with.
Word of warning though, it is hard to buy just one call once you get started.