oled monitors

I got rift in recent sale and Even though it looked ok, there was this film grain over part of the screen. Totally ruining black scenes or just dark scenes. The "dirt coat" even made normal color image look somehow worse. I disabled "SPUD" in registry and it totally removed mura calibration and...

Which options do I have for this? I'm looking for a solid gaming monitor that I could maybe pair with other monitors for multitasking. Is there something coming out thats better/newer? is this future proofed...