Look for a new gaming monitor with either 24.5 inch FullHD 240hz or 27 inch WQHD 165hz for gaming. I play many single player games such as Assassin's Creed, Watch Dogs, The Witcher, etc. But also many multiplayer games such as Fortnite, Warzone, Valorant on the lowest graphics settings for high FPS. My graphics card won't be a problem, I'll get the RX6800XT. What would you choose if you were me and which panel would you choose?
I have wqhd 165hz and find it much better. Than 240 fhd. But for E-Spkrts 240 is probably better. And your PC just has to be very good.
With your GPU I would buy a WQHD monitor, otherwise every CPU would limit the whole time because the GPU is underutilized.
In addition, 165 FPS are enough- my opinion.
In all honesty, if you're targeting esports (where only about 0.5% of all gamers make it to the top anyway), FPS aren't as important as input lag.