>>106851567
>>Alienware, $100 cheaper
>I don't know about this one, anon. Couldn't find a review either. What's good about it?
It's a refresh of the AW2724DM, which was a decent monitor. But no guarantees that the 25 is an upgrade to the 24.
https://www.rtings.com/monitor/reviews/dell/alienware-aw2724dm

>Is this "M27Q" on Amazon? same price, same everything, but no "A" for some reason.
It's called the M27Q Advanced on Amazon, it uses a newer panel compared to the one's in the M27Q.
https://www.amazon.com/GIGABYTE-Advanced-2560x1440-180Hz-FreeSync-Adjustable/dp/B0DCGPTNKV

>I also see an LG and KTC monitor in that reply. Any good?
They both got positive professional & user reviews.

IPS monitors around this price range will look and perform about the same, with panel lottery & factory color calibration quality making the biggest visual difference.
The ASUS monitor is considered to be the better one in the pack because it has good factory color calibration, offers single overdrive mode, and black frame insertion (ELMB-Sync).
M27QA is also known to have good factory calibration.