The best replacement for bitcoin is litecoin.

The best alternatives to bitcoin are rated as following:
★★★★★  litecoin
★★★★  gold
★★★★  dogecoin
★★★  paypal
★★★  usd
★★★  litecoin mining
★★  euro
★★  ripple
★★  bitcoin
★  federal reserve
★  fiat currency
  feathercoin
  banks
  peercoin
  doge
  venmo

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

Other search terms related to bitcoin and their ratings are:
★★★★★ moneypak
★★ asic
★★ ukash
You have in mind a companion for bitcoin and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of bitcoin in all years. Click on graph for more.
bitcoin
litecoin
gold