The best replacement for eg is ie.

The best alternatives to eg are rated as following:
★★★★★  ie
★★★★  ex
★★★  ek
★★  e.g
★★  ie oatmeal
★  ei
★  ie grammar
★  ig
★  ef
★  liquid
★  ek civic
★  c9
★  ek hatch
★  tsm
★  xdg
★  for example
★  etc
  cloud 9
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  ie for example
  dtg
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  vvv
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  e g
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  eg
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Speaking about eg, one probably shouldn't forget about ek front end conversion.

Other search terms related to eg and their ratings are:
★★★★★ ek front end conversion
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Google Trends

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