>>3258678sigma 16mm f1.4 dc dn (good for woods, and some portraits)
sigma 30mm f1.4 dc dn
sigma 30mm f2.8 (these two are the best all around, f/1.4 is better for portraits)
sony 50mm f1.8 (APS-C lens)
you could buy some vintage glass also, the 7artisans 35mm f1.2, and the 25mm f1.8 are good. but these would generally be manual focusing lenses, which are fun to shoot with, but a little more difficult