The best replacement for cases is criminal cases.

The best alternatives to cases are rated as following:
★★★★★  criminal cases
★★★★  user stories
★★★★  requirements
★★★  keg
★★★  covers
★★  civil cases
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★★  test cases
★  otterbox
★  scenarios
★  controls
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★  business use cases
★  pelican
★  kegs
★  cases
★  pouches
★  otterbox cases
★  test scripts
★  shams
★  sleeves
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Your alternative for cases is not listed? Suggest!
Speaking about cases, one probably shouldn't forget about built in screen protector.

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



Google Trends

Scale is based on the average worldwide traffic of cases in all years. Click on graph for more.
cases
criminal cases
user stories