I'm not running spacers. There are quite a few wheels that will fit... the key is getting the optimal width and backspace.
8-8.5" wide and 5-5.5" backspace combinations are what you want to look for. As you get into the 4.5" backspace or 9" width range you start to run into rubbing issues, primarily with the wider wheels because then you cant run thinner tires to compensate.