The best replacement for sprayers is rollers.

The best alternatives to sprayers are rated as following:
★★★★★  rollers
★★  hvlp
★★  case ih
★  air sprayers
  drippers
  graco sprayers
  graco
  airless

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

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



Google Trends

Scale is based on the average worldwide traffic of sprayers in all years. Click on graph for more.
sprayers
rollers
hvlp