Lenovo 61A5GAR3US ThinkVision P24q 23.8" FHD Monitor
Best value on a 2K monitor
Bought this to connect with a late 2012 21.5" iMac, and it works great. Lots of hardware controls if you want to calibrate for color critical work. Got it on sale and its the best value for a 2K display.
HP DreamColor Z31x Studio Monitor - Black
Studio Quality, Color Accurate
Amazing display, self calibrates, super color accurate. Color management without spending a million bucks!