This 4K 144Hz HDMI 2.1 monitor is down to £450 after a £150 discount | Rock Paper Shotgun
Philips Momentum 279M1RV Announced with 27" IPS Panel, 4K, 144Hz and HDMI 2.1 - TFTCentral
32-inch UltraGear™ 4K UHD Monitor - 32GQ750-B | LG USA
ASUS ROG Strix XG43UQ 43" 16:9 4K UHD 144Hz VA HDR Gaming Monitor XG43UQ
AORUS 43" QLED 4K 144Hz Gaming Monitor 1ms FreeSync Premium Pro (AMD Adaptive Sync), UHD 3840 x 2160, Built-in Speakers, 1 x Display Port 1.4, 2 x HDMI 2.1, 2 x USB