The best replacement for suspend is hibernate.

The best alternatives to suspend are rated as following:
★★★★★  hibernate
★★★  hibernate ubuntu
★★  power off vmware
★★  talstar
★★  deactivate cs5
★  hibernate windows
★  shutdown vmware
★  hibernate linux
★  revoke
★  deactivate adobe
★  deactivate permanently
  hibernation
  standby
  pause
  restricted application
  deactivate
  cy-kick

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Google Trends

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