The best replacement for cat5 cable is cat6.

The best alternatives to cat5 cable are rated as following:
★★★★★  cat6
★★★  cat5e
★★  cat6 cable
★★  rj45
★  cat5e cable
  ethernet cable
  cat 6

Your alternative for cat5 cable is not listed? Suggest!
Speaking about cat5 cable, one probably shouldn't forget about gigabit.

Other search terms related to cat5 cable and their ratings are:
★★★★★ gigabit
★★★★ rj11
★ rg6
You have in mind a companion for cat5 cable and it is not yet here? Propose!



Google Trends

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cat5 cable
cat6
cat5e