The best replacement for kirk is spock.

The best alternatives to kirk are rated as following:
★★★★★  spock
★★★★★  picard
★★★  gorn
★★  captain picard
★  khan
★  spock music
★  really right stuff
★  columbus
★  kirk
★  pickard
★  picard big bang theory
  giannoulias
  rrs l bracket
  alexi giannoulias
  lizard man
  rrs
  dan seals
  alexi
  picard star trek
  christopher columbus
  han solo
  archer
  do i like picard
  kurt
  arca swiss
  piccard
  janeway
  riker

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

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



Google Trends

Scale is based on the average worldwide traffic of kirk in all years. Click on graph for more.
kirk
spock
picard