The best replacement for xp500 is xp510.

The best alternatives to xp500 are rated as following:
★★★★★  xp510
★★★★  a50
★★★★  px5
★★★★  xp400
★★★  astro a40
★★★  warhead
★★  astro a50
★★  x42
★★  a40
★★  tritton warhead
★★  x41
★  px51
★  ear force delta
★  ax720
  warhead 7.1

Your alternative for xp500 is not listed? Suggest!
Speaking about xp500, one probably shouldn't forget about xbox one adapter.

Other search terms related to xp500 and their ratings are:
★★★★★ xbox one adapter
You have in mind a companion for xp500 and it is not yet here? Propose!



Google Trends

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xp500
xp510
a50