XV272U. It's currently the same price as the VG270 or the VG271.
Best 144hz 1440p Monitors with Free-SyncThe XV272 is more accurate than the Innolux IPS panels in the Gigabyte, VG270 (AHVA version no longer available AFAIK), and the VG271 which does not come with a height adjustable stand or offer as much faux-HDR support as the XV272. Beware of potential signal loss/flickering Innolux IPS panel issues which I recommend researching first, and consider looking for the Acer XF270HUA which is as accurate as the XV272, but has a faster AUO AHVA panel.