The best replacement for biofeedback is neurofeedback.

The best alternatives to biofeedback are rated as following:
★★★★★  neurofeedback
★★  meditation
★  emdr
  relaxation

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

Other search terms related to biofeedback and their ratings are:
★★★★★ emg
★ sensory processing disorder
You have in mind a companion for biofeedback and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of biofeedback in all years. Click on graph for more.
biofeedback
neurofeedback
meditation