Do you want a bolt action, semi auto, lever action...etc? I'm a Marlin guy personally but since they've been bought by Remington they have terrible quality, so you would have to buy an older one. For semi auto I would say a Marlin 60 or 795, depending on whether you want a tube fed or magazine fed, and they can usually be found for around $100. For bolt action probably a Marlin 925. And my personal favorite, a lever action Marlin 39A. The 39A's are somewhat expensive but they are worth it. A couple years ago I bought a 1955 Marlin 39A "Mountie" (20" barrel and straight grip stock) for $325.