your topic and post is a bit hard to understand from a language perspective.
Many of the AC1900 routers will do what you want but you lack details. I think someone needs to sticky a thread of how to ask for a router recommendation.
for router
1) How much internet bandwidth do you have for download and upload and what protocol (PPPOE, standard DHCP over ethernet,...)
2) what routing features do you need? QoS? Configurable? UTM? Hotspot, etc? MPLS?RIP?
3) What kind of load do you expect in terms of users and connections (i.e. must support thousands of torrent connections?)
4) budget
5) What kind of a particular (PPTP, SSTP,openVPN,etc) VPN speeds are you expecting if you intend to use VPN.
for wifi
1) square feet and obstruction
2) Client performance and protocol supported
3) features (for non consumer stuff or scheduler or even MAC control)
4) budget
5) Key properties (do you place priority on reliability? performance?)
and a disclaimer to not expect performance from wifi despite high theoratical speeds.