The best replacement for flea is tick.

The best alternatives to flea are rated as following:
★★★★★  tick
★★★★  lice
★★★  bed bug
★★★  bed bug bites
★★★  mosquito bite
★★  gnat
★  mosquito bites
★  fluke ukulele
★  fluke
★  chigoe
★  frontline
★  flee
★  flea
★  louse
★  les claypool
★  frontline flea
  victor wooten
  fruit fly
  springtail
  kenny g
  wunder
  claypool
  chigger bites
  dog flea
  bed bug bite
  not to flee
  to his coy mistress
  bedbug
  cat flea
  midge bites
  chigger
  spring tail
  fly

Your alternative for flea is not listed? Suggest!
Speaking about flea, one probably shouldn't forget about mars volta.

Other search terms related to flea and their ratings are:
★★★★★ mars volta
★★★★ nirvana
★★ radiohead
★★ fear
★★ thom yorke
★★ jane's addiction
You have in mind a companion for flea and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of flea in all years. Click on graph for more.
flea
tick
lice