The best replacement for harman is onkyo.

The best alternatives to harman are rated as following:
★★★★★  onkyo
★★★★  quadrafire
★★★  quadra fire
★★  marantz
★★  enviro
★★  lopi
★  quadrafire pellet stoves
★  hague
★  hrithik
★  ilford
  william hague
  englander
  regency

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

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



Google Trends

Scale is based on the average worldwide traffic of harman in all years. Click on graph for more.
harman
onkyo
quadrafire