The best replacement for deftones is korn.

The best alternatives to deftones are rated as following:
★★★★★  korn
★★★★  tool
★★★  chevelle
★★★  slipknot
★★  system of a down
★  limp bizkit
  glassjaw
  team sleep
  deftones

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

Other search terms related to deftones and their ratings are:
★★★★★ maynard
★★ system of a down
★ maynard james keenan
★ dillinger escape plan
★ avenged sevenfold
★ rnmj keenan
★ periphery
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deftones
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