From there, resolution is the fork in the road. A 27-inch 2560 x 1440 panel can look excellent and is easier to drive; a 27-inch 4K panel makes small text and UI elements look tighter, especially on modern operating systems with scaling.
If you regularly live in dense spreadsheets, code, or fine typography, the best size computer monitor for work often ends up being 27-inch 4K—or 32-inch 4K if you sit a bit farther back.
The second decision is connectivity, and it's where the best working from home monitor options separate themselves from basic screens. A monitor that can carry video, USB data, Ethernet, and laptop charging over one cable reduces desk sprawl and makes docking painless.
It also reduces the chances you'll end up buying a separate USB-C docking station just to get enough ports. The third decision is comfort: height adjustment or VESA mounting, a matte coating that doesn't turn every lamp into a mirror, and a believable low-blue-light mode that doesn't destroy color.