The best replacement for courier is courier new.

The best alternatives to courier are rated as following:
★★★★★  courier new
★★★★  carrier
★★★★  dovecot
★★★  mail
★★  times new roman
★★  courier
★★  cyrus
★  postfix
★  courier new font
★  speed post
★  dragonborn
★  lone wanderer
★  regular mail
★  arial
  royal mail
  forwarder
  bitesms
  sampras
  airmail
  postal service
  pete sampras
  cargo
  freight
  express mail
  registered mail
  mcenroe
  registered post
  motorist
  islate
  air freight

Your alternative for courier is not listed? Suggest!
Speaking about courier, one probably shouldn't forget about cash on delivery.

Other search terms related to courier and their ratings are:
★★★★★ cash on delivery
You have in mind a companion for courier and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of courier in all years. Click on graph for more.
courier
courier new
carrier