Definitely go with Asus and go for future expansion with an AC router like 1900. Any smaller or something like b/g/n router and the wifi bandwidth is too small to handle that many devices at once. Trust me I went through it already. Doesn't have to be Asus brand but get AC capability. I prefer the Asus they are a good name and competitive priced. Very easy to use and configure. No rebooting like d-links or other cheaper brands.