Check out this site:
https://www.monitornerds.com/best-gaming-monitor-for-you-144hz-1440p-gsync-freesync-4k/
The key things you would want
1080p
144 or higher hz
G-sync, not freesync, since you have an NVIDIA card
Then you need to make a decision on whether you want better colors (IPS) or better response time / input lag (TN)
Once you narrowed it down to a few choices, you begin the monitor lottery. They key to monitor purchasing is getting a good one in the batch (tolerable light bleed, no dead pixels), which can sometimes require 2,3,4 returns/exchanges. So once narrow down your choices, find out what is close to you (Frys, Microcenter, etc.) and see who has the best return policy on one of the monitors in your list. From there, find the price you like, purchase, then keep exchanging till you get a good one.