The best replacement for shinji is grimmjow.

The best alternatives to shinji are rated as following:
★★★★★  grimmjow
★★★  aizen
★★  zeruel
★★  takumi
★★  tousen
★  asuka
★  urahara
★  shunsui
★  satoshi
  kisuke
  grimmjaw
  ayato
  kaworu

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

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



Google Trends

Scale is based on the average worldwide traffic of shinji in all years. Click on graph for more.
shinji
grimmjow
aizen