The best replacement for relish is salsa.

The best alternatives to relish are rated as following:
★★★★★  salsa
★★★★  chow chow
★★★★  emeals
★★★  sauce
★★★  relish in
★★★  chutney
★★  pickle
★★  dill relish
★★  savor
★  sweet relish
★  pickles
★  salad
  lea and perrins
  sauerkraut
  cranberry sauce

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

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



Google Trends

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relish
salsa
chow chow