The best replacement for pecs is sign language.

The best alternatives to pecs are rated as following:
★★★★★  sign language
★★★★  moobs
★★★★  abs
★★★  boardmaker
★  pecks
★  szeged
★  eger
★  proloquo2go
★  makaton
★  videoton
★  gynecomastia
★  podd
★  round pecs
  semmelweis
  teacch
  gyno
  verbal behavior

Your alternative for pecs is not listed? Suggest!
Speaking about pecs, one probably shouldn't forget about pectus excavatum.

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



Google Trends

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pecs
sign language
moobs