The best replacement for pearl onions is shallots.

The best alternatives to pearl onions are rated as following:
★★★★★  shallots
★★★  boiler onions
★  cipollini
★  cocktail onions
  boiling onions

Your alternative for pearl onions is not listed? Suggest!
Speaking about pearl onions, one probably shouldn't forget about peas.

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



Google Trends

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pearl onions
shallots
boiler onions