2 horizontal, 1 vertical has always been my go to. Works with any arrangement /tasks you're doing. Having a mix of both is a must-have in my opinion, it gives y

2 horizontal, 1 vertical has always been my go to. Works with any arrangement /tasks you're doing. Having a mix of both is a must-have in my opinion, it gives you the widest flexbility of options. Vertical monitor I usually use for taking nodes, referring to code, or splitting bottom / top. Horizontal monitors are great for watching videos or tutorials, or splitting left/right side. I usually use 27" IPS monitors that can rotate as well, with VESA mount capability. Dell (U2415H) makes the best ones in my opinion, it's not the cheapest ($300 each), but if you're staring at a monitor all day long it's a cheap investment