Sooooo many.....
For me, it's not the old Colts etc. I don't have that kind of budget.
But I'd like to see the 5" regular old Redhawk in 45 Colt, stainless. And the Ruger three screws, blue not black.
A standard blue Redhawk in 45 Colt, either 4 or 5 1/2 inch, would make me reach for my wallet. So would a 4 inch blue, short lug GP-100 with fixed sights, this time in 40/10mm. Like many here, a no-lock S&W revolver is near the top of my list. Make mine a 22-4 Model 1950 with a 4" barrel.