The best replacement for holocaust is slavery.

The best alternatives to holocaust are rated as following:
★★★★★  slavery
★★★  genocide
★★  shoah
★★  holocaust
★★  rwanda
★  darfur
★  rwanda genocide
★  native american genocide
★  crucible
★  hiroshima
★  armenian genocide
★  salem witch trials
★  world war 2
★  pol pot
  concentration camps
  syria
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  gulag
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  holodomor
  atomic bomb
  cambodia
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  african holocaust
  armenian
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Your alternative for holocaust is not listed? Suggest!
Speaking about holocaust, one probably shouldn't forget about hitler.

Other search terms related to holocaust and their ratings are:
★★★★★ hitler
★★ anne frank
adolf hitler
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