Monitor to replace Alienware AW2521HFL 24.5" monitor?

[Vegeta]

Hi guys.

I'm selling this monitor to my little brother so need a replacement. I would like to go up in size and resolution but retain at least 240hz (anymore diminishing returns).

What would be a good upgrade route say 27"? I have a 65" Philips 120hz OLED for normal games but play CS:GO mostly and is OLED an option now?

Thank you.

 

[Vegeta]

I may wait for the OLED's prices are high but at least then I get everything i'm after OLED 240hz so no need to upgrade for a long time (unless they bring out some other technology we all would be wanting no doubt).