The best replacement for sanitizer is disinfectant.

The best alternatives to sanitizer are rated as following:
★★★★★  disinfectant
★★★★  soap
★★★★  hand washing
★★  washing hands
★★  soap and water
★★  hand soap
★  sterilizer
★  antibacterial soap
★  air purifier
★  handwashing
★  antibacterial
★  sanitiser
  cleaner
  washing your hands
  oxidizer
  rubbing alcohol
  soap science fair project
  soap science project
  hand washing cdc
  wet wipes
  washing with soap and water
  shock
  wipes

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

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



Google Trends

Scale is based on the average worldwide traffic of sanitizer in all years. Click on graph for more.
sanitizer
disinfectant
soap