The best replacement for roger is copy.

The best alternatives to roger are rated as following:
★★★★★  copy
★★★  rodger
★★★  becker
★★  jessica rabbit
★★  rafa
★★  jacare
★★  dudley
★★  shiki
★★  roger that
★  stewie
★  cpaexcel
★  novak
★  rickson
★  whitebeard
★  yeager
★  garry
  buchecha
  fido
  andy
  roger
  pete
  wilco
  rafael

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

Other search terms related to roger and their ratings are:
★★★★★ zapp
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Google Trends

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