The best replacement for h100i is h110.

The best alternatives to h100i are rated as following:
★★★★★  h110
★★★★  h80i
★★★  h105
★★★  noctua nh-d14
★★★  h100
★★★  212 evo
★★  h220
★★  seidon 240m
★★  x60
★  noctua nh-u14s
★  h110i
★  h90
★  h60
★  h80
★  kraken x60
★  glacer 240l
  phanteks ph-tc14pe
  custom loop
  noctua d14
  kraken x40
  240m
  nzxt kraken x60
  swiftech h220
  air cooler

Your alternative for h100i is not listed? Suggest!
Speaking about h100i, one probably shouldn't forget about sp120.

Other search terms related to h100i and their ratings are:
★★★★★ sp120
★★★ 600t
★★★ corsair link
★★★ 4670k
★★ 500r
★ 8350
You have in mind a companion for h100i and it is not yet here? Propose!



Google Trends

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h100i
h110
h80i