The best replacement for incubator is isolette.

The best alternatives to incubator are rated as following:
★★★★★  isolette
★★★★  accelerator
★★★  procrastinator
★★  venture capital
★  hatcher
★  warmer
★  circulated air incubator
★  broody hen
★  hen
★  direct heating incubator
★  radiant warmer
★  broody
  kangaroo care

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

Other search terms related to incubator and their ratings are:
★★★★★ eggs
★★★ quail eggs
★ four quail eggs
orbital shaker
You have in mind a companion for incubator and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of incubator in all years. Click on graph for more.
incubator
isolette
accelerator