What is the absolute best gaming monitor for the Xbox Series X that actually works without constant flickering?

Im honestly so fed up with my current monitor, it keeps blacking out randomly mid-game whenever HDR kicks in and Im just completely done with it. I need a replacement immediately because my gaming group is starting a league next weekend and I cant be dealing with a black screen during matches.

My budget is around 400 to 500 bucks max, and I need something I can get quickly shipped to me here in Ohio. Here is what I absolutely need:

• True HDMI 2.1 support for 4K at 120Hz
• Low input lag for shooters like Warzone
• Reliable HDR that doesnt break the screen

Every review site says something different and Im losing my mind trying to filter out the sponsored garbage. Does anyone have a setup that actually works flawlessly with the Series X?