Which monitor to buy?

I am currently looking for a 27” 1440p high refresh rate monitor around 250-300USD. Please help me pick one or suggest a different comparable monitor altogether.

I have narrowed it down to a few monitors that have been the go to for a lot of users for a while now along with a reason why I am hesitant to buy that particular monitor and its price in my country.

So far I have:

• M27Q Rev1.0: Fair response times and low input lag. The BGR sub pixel layout and blurry text is throwing me off. (250 USD)

• M27Q Rev2.0: Gigabyte fixes the BGR bs and rev2.0 is RGB layout, but compared to rev1.0, slightly slower response times, more input lag and less contrast. (260 USD)

• LG 27GP850: Everyones favorite apparently but no KVM switch or PIP from different video sources. (320 USD)

• LG 27GR75Q: My friends ride or die. He has been advocating for this monitor ever since I asked him for suggestions but I cannot find any numbers on it online. Nothing on response times, OD modes, Contrast, or input latency. I am really tempted to get this monitor as I have heard nothing but good things about it from my friend. But I am afraid the response times will turns out be 10-15ms. (230 USD)

• MSI MAG274QRF QD E2: Just like the 27GR75Q, I cannot find any in-depth review on this monitor. But if MAG274QRF QD is anything to go off of, then E2 probably has some over saturation issues out of the box. (300 USD)