The best replacement for routers is switches.

The best alternatives to routers are rated as following:
★★★★★  switches
★★★  hubs
★★★  bridges
★★  modems
★★  access points
★★  gateways
★  firewalls
★  switch
★  n routers
★  layer 3 switches
★  wired routers
★  shapers
★  g routers
  cisco
  single band routers
  wireless
  switches network
  wireless g routers
  wireless access points
  cisco routers
  linksys
  adapters
  software routers
  hub
  netgear
  netgear routers

Your alternative for routers is not listed? Suggest!
Speaking about routers, one probably shouldn't forget about guest network.

Other search terms related to routers and their ratings are:
★★★★★ guest network
★★★★ modems
★★★★ wifi
★★★★ modem
★★★ upnp
★★ port forwarding
You have in mind a companion for routers and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of routers in all years. Click on graph for more.
routers
switches
hubs