The best replacement for snakes is lizards.

The best alternatives to snakes are rated as following:
★★★★★  lizards
★★★★★  spiders
★★★★  snakes
★★  crocodiles
★★  alligators
★★  cats
★  rats
★  worms
★  reptiles
★  birds
★  non poisonous snakes
★  king snakes
★  ball pythons
★  scorpions
  frogs
  non poisonous
  nonpoisonous snakes
  land snakes
  pythons
  non venomous snakes
  rattlesnakes

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

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



Google Trends

Scale is based on the average worldwide traffic of snakes in all years. Click on graph for more.
snakes
lizards
spiders