The best replacement for roxas is riku.

The best alternatives to roxas are rated as following:
★★★★★  riku
★★★★  sora
★★★  ventus
★★★  axel
★★  xion
★  saix
★  roxas
★  binay
★  sora final mix
★  vanitas
★  sora who is better
  romualdez
  ven
  marluxia
  xemnas

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

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



Google Trends

Scale is based on the average worldwide traffic of roxas in all years. Click on graph for more.
roxas
riku
sora