The best replacement for robots is humans.

The best alternatives to robots are rated as following:
★★★★★  humans
★★★★★  zombies
★★★★  wrestlers
★★★  dinosaurs
★★  dragons
★  zombies hacked
★  bots
★  human
★  humans in space
★  androids
★  spiders
★  unicorns
★  ninjas
★  robots
★  zombies comic
★  monsters
  robotics
  astronauts
  zombies miniclip
  zombies games
  wrestlers how i met your mother
  human beings
  human workers
  monkeys
  artificial intelligence
  teleoperated robots
  pirates
  fake robots
  human labor

Your alternative for robots is not listed? Suggest!
Speaking about robots, one probably shouldn't forget about cartoon.

Other search terms related to robots and their ratings are:
★★★★★ cartoon
You have in mind a companion for robots and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of robots in all years. Click on graph for more.
robots
humans
zombies