The best replacement for front squats is back squats.

The best alternatives to front squats are rated as following:
★★★★★  back squats
★★  hack squats
★★  regular squats
★★  squats
★  zercher squats
★  lunges
★  goblet squats
★  normal squats
  rear squats
  barbell back squats
  box squats

Your alternative for front squats is not listed? Suggest!
Speaking about front squats, one probably shouldn't forget about back squats.

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



Google Trends

Scale is based on the average worldwide traffic of front squats in all years. Click on graph for more.
front squats
back squats
hack squats