The best replacement for canary is parakeet.

The best alternatives to canary are rated as following:
★★★★★  parakeet
★★  finch
★★  chromium
★★  huntress
★★  piper
★★  budgie
★  dropcam
★  black widow
★  yellow diamond
★  ismartalarm
★  zebra finch
★  dev channel
★  goldfinch
★  lovebird
★  lady shiva
★  dev
★  black canary
  green arrow
  banshee
  catwoman
  bukkit
  mockingbird
  yellow
  elektra
  silver banshee
  fancy yellow
  finches

Your alternative for canary is not listed? Suggest!
Speaking about canary, one probably shouldn't forget about other birds.

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



Google Trends

Scale is based on the average worldwide traffic of canary in all years. Click on graph for more.
canary
parakeet
finch