The best replacement for overlock is serger.

The best alternatives to overlock are rated as following:
★★★★★  serger
★★★  coverstitch
★★  overcast
★★  sewing machine
★★  flatlock
★  lockstitch
★  overedge
★  nähmaschine
  3 thread overlock
  coverlock
  cover stitch
  5 overlock serger
  serge

Your alternative for overlock is not listed? Suggest!
Speaking about overlock, one probably shouldn't forget about sewing machine.

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



Google Trends

Scale is based on the average worldwide traffic of overlock in all years. Click on graph for more.
overlock
serger
coverstitch