The best replacement for chloroform is ether.

The best alternatives to chloroform are rated as following:
★★★★★  ether
★★★  dichloromethane
★★  chlorophyll
★  phenol chloroform
★  methylene chloride
★  dcm
  coliform
  carbon tetrachloride
  dmso
  halothane
  chloroform isoamyl alcohol

Your alternative for chloroform is not listed? Suggest!
Speaking about chloroform, one probably shouldn't forget about isoamyl alcohol.

Other search terms related to chloroform and their ratings are:
★★★★★ isoamyl alcohol
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chloroform
ether
dichloromethane