I am right there with ya, gal, with the lovely complication that as I go down in size everything starts to be too short. Ugh.
Most of the suggestions I would have made have been mentioned. Talbots goes down to a 14w, and any brand that caters to an older demographic tends to be a bit more generous in sizes and possibly silhouette - Chico's, J. Jill, the brands that Nordstrom sells in the department that sells Eileen Fisher (also a decent bet if you want to make the investment). I agree with Nadya that some of the brands that Kohl's sells work well, and some brands I find regularly at TJ Maxx and Marshall's - Anne Klein, some Max Studio stuff, Vince Camuto. Also the plus-sized designer lines tend to run small - I got a top recently from Green Envelope via Marshall's that's a 1x which is closer to an XL except the sleeves are a bit more generous. I think the plus sections of Marshall's and Nordstrom Rack are a good place to keep an eye out for these, as well as the Nordstrom's plus department, although 14s/0x's sell seemingly instantaneously.
