The best replacement for eurostar is thalys.

The best alternatives to eurostar are rated as following:
★★★★★  thalys
★★★★★  eurail
★★★  rail europe
★★★  tgv
★★★  chunnel
★★  ferry
★★  easyjet
★  shinkansen
★  eurorail
★  euro railways
★  eurotunnel
  trenitalia
  ikarus
  euro tunnel
  railways

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

Other search terms related to eurostar and their ratings are:
★★★★★ avios
★★★★ eurail pass
★★★ interrail
★★★ expedia
★ short breaks
★ disneyland package
You have in mind a companion for eurostar and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of eurostar in all years. Click on graph for more.
eurostar
thalys
eurail