HP38 or W231... No need for any other non magnum pistol powder on my shelf.
I used to load Unique a lot for the whole range of ctr fire pistol rds then 1 day at a gunshow I bought a full case of 10 1 lb bottles of HP-38 for a $50 bill. Yeah I like it to for 38,9,45, and 44's. Clean burning , economic to shoot and accurate. OP needs to see what's available and will cover his needs. MB