Welcome to the forum.
The old standbys are Bullseye and HP38/231 (the last two are the same powder in different packages). At 230-grain ball power level, Hodgdon Universal is cleaner burning than the older powders. Tightgroup also has a reputation for being cleaner, but hotter. If you want light target loads, Clays and N310 are good. Of all the above, HP38/231 is the easiest powder to meter consistently by volume. Other old standards include Red Dot and Unique. Dirtier and harder to meter, respectively, in my past experience, but I haven't used the former in 30 years, so I don't know if the dirtier thing is an impression or real. More modern powder for full power loads would be Power Pistol. HS-6 still has its adherents, too, for that purpose. There are also newer powders out at Alliant, among others. You will get to try some things out, but if you just want fairly immediate decent results, get HP38 or 231 and avoid the metering issue altogether.