The best replacement for oculus is morpheus.

The best alternatives to oculus are rated as following:
★★★★★  morpheus
★★★★  glyph
★★★  project morpheus
★★  sony morpheus
★★  sony vr
★★  valve
★★  vuzix
★  triumvirate
★  totem

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Google Trends

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