Acer has announced the Nitro XV272U KF, a 27-inch monitor with a lot going for it. The monitor combines a 1440p resolution with a 300 Hz refresh rate, and is VESA DisplaHDR 600 certified. The Nitro XV272U KF supports HDMI VRR and AMD FreeSync Premium, too.
https://www.notebookcheck.net/Acer-Nitro-XV27U-KF-revealed-with-a-300-Hz-refresh-rate-and-a-1440p-native-resolution.559164.0.html