The best replacement for lion is tiger.

The best alternatives to lion are rated as following:
★★★★★  tiger
★★★★  bear
★★★  crocodile
★★★  hyena
★★  gorilla
★  mountain lion
★  buffalo
★  lion
★  tiger fight
★  grizzly bear
★  tuna
★  elephant
★  wolf
★  mavericks
★  cheetah
★  lamb
★  hippo
★  snow leopard
  leopard
  gazelle
  bull
  tiger youtube
  sheep
  alligator
  lady
  tiger video
  cougar
  tiger faster
  gator
  hyenas
  water buffalo
  bear stronger
  seal
  rhino
  tiger who would win
  tigers
  tuna the other guys
  bear video
  tiger real fight
  tiger bigger
  eagle
  pitbull
  python
  snake
  tiger stronger
  zebra
  great white shark
  giraffe
  grizzly

Your alternative for lion is not listed? Suggest!
Speaking about lion, one probably shouldn't forget about snow leopard.

Other search terms related to lion and their ratings are:
★★★★★ snow leopard
★★★★★ app store
★★★ recovery partition
★★★ apple id
★★ melanism
★ lioness
You have in mind a companion for lion and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of lion in all years. Click on graph for more.
lion
tiger
bear