All Winchester/Olin/St. Marks powders except WXR are ball powders. This firm sells ball powders to Hogdon. Hogdon markets these some of these as HP38, HS-6, HS-7, H110, H335,BL-C(2),H380,H414 and H870. Accurate #2,#5,#7,#8, 1680,2230,2460,2520,2700,4100, & 8700 are ball powders. Titewad is also a Hogdon ball powder: I'm not sure of its' origin. Accurate purchases some powders from Winchester/Olin/St. Marks, and some from overseas. Western Powder (AKA Ramshot) offers ball powders for the handloader such as Competition, Zip, Silhouette, True Blue, Enforcer, X-Terminator, Tac, Big Game, Hunter, Magnum, and many, many more for the commercial loader. Like Accurate, Western has multiple suppliers.
There are also a number of ball powders made overseas that are occasionally available here in the U.S. These sometimes carry the makers name, sometimes are available as "use like" powders through various suppliers. Then there are milsurp powders, of both foreign and domestic origin.
You might also note that there are a number of short grained extruded powders that most measures meter quite well. Also, the re-opening of Belding and Mull will shortly make their famous measure once again available. This measure handles the long grain extruded powders with real consistency. The new (and rather reasonably priced) Johnson measure is supposed to be able to give the (very expensive) Harrell and Jones measures a run for their money, perhaps it will even exceed their capabilities.
As far as metering flake powders goes, I know of no measures that will beat the old SAECO measures at this task (including the Redding measures that replaced them). I have half a dozen of these set up for various charges that I routinely use in various handgun loads.
For very small charges of flake powders (such as are used in the 25 ACP and 32 ACP) I use an ancient Ideal #6.
Bob