The best replacement for h100 is h80.

The best alternatives to h100 are rated as following:
★★★★★  h80
★★★★★  h110
★★★★★  h100i
★★★★  h60
★★★  h80i
★★★  h105
★★  noctua
★★  hyper 212
★★  nh-d14
★★  d14
★★  custom loop
★★  noctua nh-d14
★★  kraken x60
★★  air cooling
★★  f12
★  x60
★  hyper 212 evo
★  noctua dh14
★  noctua nh d14
★  silver arrow
★  custom water cooling
  xspc
  k2700
  l300
  seidon 240m
  venomous-x
  bic f12
  noctua d14
  kia k2700

Your alternative for h100 is not listed? Suggest!
Speaking about h100, one probably shouldn't forget about sp120.

Other search terms related to h100 and their ratings are:
★★★★★ sp120
★★★★ 600t
★★★ 500r
★★★ corsair link
★★ 2500k
You have in mind a companion for h100 and it is not yet here? Propose!



Google Trends

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h100
h80
h110