You should look at 1920x1080 as your baseline monitor at this point. The basics we need for advising for a motherboard is:
CPU (You listed the i7 6700k) - the reason is there is a socket on motherboards for CPUs and we need to select the correct one.
PCIe slot items (Graphics cards, fancy SSDs, any networking cards, etc) - number of items determines number of slots, motherboards don't have the same number
Amount of RAM (8gb, 12gb, 16gb, 32gb, 64gb, etc) [Memory for running your computer] - Motherboards support a certain amount of RAM per slot, and RAM slots. They aren't the same across all motherboards
You may find that you'll want a better graphics card to go with that high of a CPU, but perhaps you're thinking of upgrading later (I smell GTX 1080 ti's on the horizon)