"Quad Monitor" 3840x2160 resolution setting

[NolieRavioli]

I've had a lot of trouble finding good backgrounds for my 4 1920x1080 monitors. They're setup 2x2 so really any 4k,16:9 wallpaper works.
But I'm specifically looking for wallpapers that dont utilize the very center of the screen because it would be at the edges of each of my screens. not nice to look at.