The best replacement for airplay is bluetooth.

The best alternatives to airplay are rated as following:
★★★★★  bluetooth
★★★★  sonos
★★★  dlna
★★  chromecast
★★  mirroring
★★  airparrot
★  miracast
★  home sharing
★  bluetooth sound quality
★  airplay mirroring
★  airtunes
★  airserver
★  bluetooth which is better
★  airport express
  airport
  widi
  bluetooth speakers
  itrip
  hdmi adapter
  digital av adapter
  bluetooth audio quality
  just bluetooth

Your alternative for airplay is not listed? Suggest!
Speaking about airplay, one probably shouldn't forget about apple tv.

Other search terms related to airplay and their ratings are:
★★★★★ apple tv
★★ airport express
★★ android
★ mirroring
★ spotify
★ vlc
★ sonos
★ sound
old apple tv
quicktime
ipad 1
pandora
You have in mind a companion for airplay and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of airplay in all years. Click on graph for more.
airplay
bluetooth
sonos