Good luck finding any that won’t require financial embarrassment. Alliant availability on about anything they make has been atrocious the last three years.
If you loading straight wall, try Winchester 244 or Accurate #5. Seems to be a good alternative from what I’ve seen.
I’ve had good luck with 244 but be aware that it’s quite a bit faster than Unique. So far I’ve shot 244 in 9mm, 38 Special, and 44 Mag. Good “target” powder for all three. Burns clean as well.