Walmart has the Mossberg 500 for a little over $220 each. Not a bad deal. Have owned them in the past and never had an issue.
I really need another Marlin 1894C. You wouldn't believe how handy those rifles are. This one sports a Williams peep sight on the back and a fire sight on the front. That firesight was the best investment I could have made. Put it on myself which means anyone can do it. In low light it twinkles a bright red and makes it easy to aim in low light situations. My next one will sport a low power scope but I have a skinner peep just in case anything happens to the scope. Those Hornady XTP bullets cycle through as smooth as butter. It is big enough to knock our small whitetail flat at 100 yards and can be downloaded for small game/javalina usage if needed. 9 shots gived one a comfy feeling especially if one carries a revolver of the same caliber. A man can carry a lot of .357 ammo if a bug out is needed. My next revolver is going to be a taurus .357 snubbie. Believe it is a model 605. Got to have a hidaway gun in the mix... In my humble opinion for a revolver the minimum caliber should be the .357 magnum. It is the queen of the revolver calibers. I have seen deer and even black bear killed with it. The .44 mag is a great round but the revolvers it comes in are quite heavy and recoil is stout. May be too much for the smaller members of the family. For those with semi autos I wouldn't even consider one below .40 & .45 caliber. (IMHO) Bigger is better when it comes to semi autos.
Another .22 (Marlin model 60) will be the last one to be purchased. The .22lr is a great inexpensive game getter and allows the younger members of the family to be able to defend the home if needed. (great girls gun)
I cannot say enough good things about the Marlin XL7 rifles. I put Sightron S1 scopes on them. I have owned many calibers over the last few decades and with the exception of the 6.5x55 swede I find the .270 winchester to be the best all around caliber for where I live. Got to pick one in a common caliber. They come in all the favorite calibers-243, 7mm-08, 308, 25-06, 270 and the great 30-06.. One of these should cover the area in which you live. Even most smaller women can shoot the 270 without much problem. Marlin did it right with this rifle!
Too many guns? Perhaps. But no one gun will cover every situation. If I had to pick just one gun to survive with it would have to be a pump shotgun with multiple barrels. You can down big game with a slug gun and switch over and live off starlings and robins if one had to. (It's been done, trust me on this) A rifle will down game yet it's tough to bird hunt with a 30-06. The .22 is a versitile caliber but far from ideal for big game and birds.
Anyway, this are my humble choices. I admit I drool a bit when I see some of the expensive military guns some of you guys sport. They have a place in anyones collection. I'm kinda old school. Wouldn't even know how to operate some of them fancy things.
But never say never.) Maybe someday I will post a picture with me and a peice that looks like it came out of one of the Star Wars films.