The best replacement for hitsugaya is gin.

The best alternatives to hitsugaya are rated as following:
★★★★★  gin
★★★★  aizen
★★★  ichimaru
★★★  halibel
★★★  ichigo
★  byakuya
★  luppi
★  yukio
★  shawlong
★  ulquiorra
★  hyourinmaru
  yammy
  grimmjow
  arrancar
  ishida

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

Other search terms related to hitsugaya and their ratings are:
★★★★★ bankai
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Google Trends

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hitsugaya
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