What are you wanting to do with it? Home defense, target, varmints, just to listen to it go "bang"? Do you want to make it tacticool (hang all kinds of crap on it)? All those could affect recommendations.
Actually, your timing is good as they are getting to be plentiful and no longer outrageously priced.
A lot of it is ford vs chevy. I'm not aware of any really bad ones out there. Some are really good but cost a lot more.