The best replacement for knights is dragons.

The best alternatives to knights are rated as following:
★★★★★  dragons
★★★★  samurai
★★  dragons mtg
★  knights
★  dragons wiki
★  bishops
★  husan
  pirates
  columbus
  spartans
  warriors
  orcs
  noveske
  storm
  mongols
  mason order
  templar
  dragons magic
  samurais
  angels wartune
  guelph storm
  japanese samurai

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

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



Google Trends

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knights
dragons
samurai