AOC 27 Inch OLED Gaming Monitor (QD-OLED), 1440p QHD 2560x1440, 240Hz, 0.03ms, HDMI 2.1, G-SYNC Compatible, HDR True Black, Height Adjustable Stand, USB Hub, Q27GAZDV

This is quite hard to beat: https://pcpartpicker.com/product/ZdyH99/rca-evolution-premium-270-2560-x-1440-240-hz-monitor-m27pg135f Quad HD, 240Hz, adjustable stand, IPS... For that price you can even easily get two for a dual-monitor setup. There's then this QD-OLED one: https://www.amazon.com/AOC-2560x1440-Compatible-Adjustable-Q27GAZDV/dp/B0GT2JP76J?th=1 Expensive but it is a QD-OLED monitor... As for an OLED monitor (better than QD-OLED it seems): https://www.amazon.com/LG-27GX704A-B-Compatible-TrueBlack400-DisplayPort/dp/B0FNQ4B2Z2?th=1 (This has a glossy panel, dunno if you'd like that or not) QD-OLED are something new it seems... Looks like they aren't as good as OLED ones but still really good and at a lower price...