The best replacement for scallions is chives.

The best alternatives to scallions are rated as following:
★★★★★  chives
★★★★  green onions
★★★★  shallots
★★★  onions
★★  leeks
★★  spring onions
★  green onion
  scallops
  regular onions
  ramps
  green scallions
  pearl onions
  lemongrass
  shallot

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

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



Google Trends

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scallions
chives
green onions