The best replacement for jars is containers.

The best alternatives to jars are rated as following:
★★★★★  containers
★★★★★  bottles
★★★  tupperware
★★  canning jars
★★  mylar bags
★★  tumblers
★  pouches
★  ball jars
★  cans
★  canisters
★  ball
★  kilner jars
★  vases
  glass jars
  kerr

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

Other search terms related to jars and their ratings are:
★★★★★ lids
★ metal lids
rack
pressure canner
You have in mind a companion for jars and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of jars in all years. Click on graph for more.
jars
containers
bottles