The best replacement for software raid is hardware raid.

The best alternatives to software raid are rated as following:
★★★★★  hardware raid
★★★  lvm
★★  fakeraid
★★  hardware
★  hardware raid linux
★  bios raid
★  motherboard raid
  fakeraid ubuntu

Your alternative for software raid is not listed? Suggest!
Speaking about software raid, one probably shouldn't forget about lvm.

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



Google Trends

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software raid
hardware raid
lvm