99.999999% of all the bullets I shoot are my own cast ones. For the other .000001% I buy them from a local "pusher". Hornady 158gr XTP or it's 44 caliber brother in 240gr.
Both are used in Marlin 1894 rifles.
I guess we need to know what you are going to try to do with them before we can be of much help. If you want range fodder, maybe plated is the way to go. A high velocity hunting bullet would be a different suggestion, like the ones I mentioned above.
Personally, in most handgun calibers, 38 to 45 Colt, a good cast lead bullet, of the proper size and alloy, cannot be beat.