Help choosing cable router

hi, i need help picking a new router, i currently use the superhub 2ac but want something that will improve the wireless range and speed throughout the house, here's a list of activities for the router

1. web browsing
2. online gaming
3. newsgroups and torrents
4. wireless printing
5. streaming (netflix, amazon, kodi, live football)

there will be anything upto 20 wireless devices and 3 wired devices connected at once

here are the devices i'm considering

1. NETGEAR R7500
2. ASUS...

Help choosing cable router