The Asus ProArt Display might be the Studio Display alternative you've been waiting for with a 5K 27 ... to portrait mode. The base is made to be intentionally smaller than other monitor stands ...

Long story short: the 27-inch AOC U27P2CA wants to give ... You can rotate the screen by 90 degrees too, into a portrait mode. When built, the monitor measures 614 x 545 x 200mm and weighs 7.1kg.