The best replacement for hrv is erv.

The best alternatives to hrv are rated as following:
★★★★★  erv
★★★★  dvs
★★★  dehumidifier
★  sayr
★  hvac
★  exhaust fan
★  smartvent
★  bathroom fan
★  air exchanger
★  moisture master
★  smart vent
★  erv difference
  piv
  whole house dehumidifier
  double glazing
  ez breathe

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Google Trends

Scale is based on the average worldwide traffic of hrv in all years. Click on graph for more.
hrv
erv
dvs