I would take the European approach, where in many countries the number of firearms is limited. First is Blaser R-93 for which I already have barrels in .22-250 and .270. I would add a 9.3 if needed. Second would be one of my tried and true .30-06s. Choices are a custom Springfield sporter, a '70 Gd III BAR, or a mid '50s custom FN Mauser. The Mauser would be the sane choice, but we are gun loonies.
My wife would keep a matched pair of Browning Safaris, a .243 & .308. Both are small ring, pencil barrel Mausers.
Daughter one would keep two Ruger No. 1s, an AH & a S-C. (.25-06 & .45-70)
Daughter two would keep two Marlins. .218 Bee and .30-30 Octagon.
Daughter three would keep prewar M 70 .270 and a .40-65 Shiloh Sharps.
Granddaughter one will keep............
I think you get the idea by now. If I can't keep them all, I will order up more grand/great grand kids.
I grew up in a WW II household that had one .single shot .22 and ammo was scarce. Perhaps that experience injured my psyche. For the ones not in the know, all US industry was geared to the war effort. Consumer goods such as guns, vehicles, tractors, tires, sugar, and gasoline ( and lots of other stuff) was either not available or rationed. You needed a ration coupon to buy a tire for example.
I have spent a lifetime gathering up a small collection of nice firearms, long and short, and I will give them to family members before I give them up completely. When I am gone, the family can dispose of them as they choose. But for now, I have them available for my use (at multiple locations to cut down on transportation and to be handy to where I would use them) either locally or at two kid's ranches. One SIL and daughter, are serious farmers and ranchers. Lots of deer! Another daughter and her husband are co owners of a smaller place which has a lodge. They are trying to make it into a quail, dove, duck, and fishing haven. Right now, we are working on the coyote and turtle population. And the deer aren't bad either.
These exercises are fun and make us think. It could happen that our numbers and choices are limited. Just remember, FREEDOM IS NOT FREE! Jack