For handgunning, you can cover pretty much the entire spectrum by getting a fast, a medium, and a slow burning powder.
There are several combinations that can work well; these are just a few suggestions:
Alliant Bullseye, Alliant Unique, Alliant Blue Dot
Accurate Arms #2, Accurate Arms #5, Accurate Arms #9
Vihtavuori N320, N340, 3N37
Hodgdon Titegroup, Universal, Longshot
Dean of the Darth Vader School of Personnel Management