The best replacement for red x is robin.

The best alternatives to red x are rated as following:
★★★★★  robin
★★★★  slade
★★  red hood
★  golo
  teen titans

Your alternative for red x is not listed? Suggest!
Speaking about red x, one probably shouldn't forget about circle on ipod classic.

Other search terms related to red x and their ratings are:
★★★★★ circle on ipod classic
You have in mind a companion for red x and it is not yet here? Propose!



Google Trends

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red x
robin
slade