BH Photo Video has 27" MSI Optix WQHD 165Hz 1ms IPS Gaming Monitor w/ G-Sync (MAG274QRF-QD) for sale for pre-order for $389. Shipping is free.
Note, due to this product being a pre-order and scheduled to be available on December 28, 2020; shipping dates will vary.
SpecsResolution: 2560x1440 (WQHD)Refresh Rate: 165HzResponse Time (GTG): 1msContrast Ratio: 1000:1Viewing Angles: 178/178 (Horizonal/Vertical)Adjustable StandNight VisionNVIDIA G-Sync/HDR ReadyVESA Mounting: 100x100mmInputs2x HDMI1x DisplayPort1x Type-C