Hello & Welcome to the Forum.
I did a little searching and found 4 Post War Locomotives that fit your description:
681 & 671 6-8-6 PRR Pennsylvania Steam Turbine
2035 2-6-4 K-4 Pacific
2025 2-6-2 K-4 Pacific
There are no doubt others,
Colombia/Scout in the 2-4-2 wheel arrangement.
The 2035 is the difficult one to find, but all of them should be available at one of the online auction sites.
Good Luck!
Dave