The best replacement for splitter is tap.

The best alternatives to splitter are rated as following:
★★★★★  tap
★★★★  diplexer
★★★  sinker
★★★  forkball
★★★  switch
★★★  combiner
★★  amplifier
★★  riving knife
★  lumper
★  multiswitch
★  coupler
★  splitcontainer
★  102
★  slider
★  air dam
★  dual lnb
★  microfilter
  kickback
  divider
  power divider
  cutter
  switcher
  changeup
  98a
  switch ethernet
  klock werks

Your alternative for splitter is not listed? Suggest!
Speaking about splitter, one probably shouldn't forget about signal loss.

Other search terms related to splitter and their ratings are:
★★★★★ signal loss
★★★★ hdcp
You have in mind a companion for splitter and it is not yet here? Propose!



Google Trends

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