Not attempting to give a recommendation, I'll share what has worked well for me. I bought a Homack "Homesafe" about 10 years ago at the cost of about $100.00. It holds 8 long guns and has a shelf at the top for handguns and the like. It has two of the cylindrical style locks and is pretty well made. What I have done to make it more secure is to bolt it to wall studs as well as bolting it to the concrete floor with a couple of bags of quick-crete in the bottom. It is far from theft proof but it will take considerable effort and a lot of noise to get this thing out. It's never been tested but I feel pretty confident that it will slow a thief down to the point he may get discouraged and try something easier.
