Few that I've considered in the past are 2 Tamrons, the 17-28 F2.8 and 70-180 F2.8, but I have to look more into the sharpness of the first and the bokeh of the latter. The newest Sony 16-35 F4, maybe the Sony 135 F1.8.
There are some that I think are better that the Nikon variants but not enough to justify adapting then, such as the Tamron 28-200 F2.8-5.6 or the Sony 20 F1.8