The best replacement for mites is bed bugs.

The best alternatives to mites are rated as following:
★★★★★  bed bugs
★★★★★  fleas
★★★★★  lice
★★★★  ticks
★★★  scabies
★★★  mange
★★★  ear infection
★★  chiggers
★★  dandruff
★  mud fever
★  springtails
★  aphids
★  rsi
  ear wax
  molting
  bird lice
  clover mites
  fleas cats
  spider mites
  morgellons

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

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



Google Trends

Scale is based on the average worldwide traffic of mites in all years. Click on graph for more.
mites
bed bugs
fleas