The ASUS ROG Swift PG279QM has been my endgame 240Hz monitor for competitive play. 27" IPS panel with incredible color accuracy (95% DCI-P3), G-Sync, and 1ms response time. Yes, it's pricey, but the combination of high refresh rate with 1440p resolution means you don't sacrifice visual quality for speed. Running this with my 4080 has transformed my Valorant experience - zero motion blur and the smoothest gameplay I've ever experienced.

Alienware AW2723DF is a good choice.

Hello, I just got the LG ‎27GS93QE OLED Gaming monitor. Love it.

MSI MPG 321URX QD-OLED. https://www.amazon.com/MSI-MPG-321URX-QD-OLED-Quantum/dp/B0CTSC3VS4?tag=7649-20