For all around use:

Remington 870 12 ga
Ruger#1 270win or 300win mag
Marlin 30-30 or 444
S&W 57 41mag
Ruger 22/45 22lr
Remington 513T 22lr
Ruger #1 22-250
Ruger Red Label O/U 12ga

Dream Collection:
Every Ruger #1 in every model and caliber ever made
Original 1885 high wall winchester in a 45-70
Scolfield 41 long colt
Kriegoff over and under 375 H&H
Winchester 101
And a ton of antique Black powder revolvers and rifles.
Just to name a few that catch my eye.