The best replacement for crossfit is p90x.

The best alternatives to crossfit are rated as following:
★★★★★  p90x
★★★★  bodybuilding
★★★  insanity
★★★  gym
★★★  omnifit
★★  weight lifting
★  trx
★  boxing
★  powerlifting
★  running
★  mma
★  yoga
★  bootcamp
★  zumba
★  gym jones
★  kickboxing
★  hiit
★  strength training
★  personal trainer
★  lifting
★  pilates
  crossfit football
  circuit training
  weight training
  crossfit endurance
  sealfit
  orange theory
  boot camp
  olympic lifting
  t25
  rkc
  traditional weight training
  calisthenics
  hot yoga
  tacfit
  regular weight lifting
  cross training
  t-nation
  starting strength
  npfl
  p90x better
  cardio
  mma training
  body pump
  monkey bar gym
  triathlon

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

Other search terms related to crossfit and their ratings are:
★★★★★ paleo
★★★ olympic lifts
★★★ injury
★★★ getting bulky
★★ paleo diet
★ bulking up
★ affiliation
★ bodybuilding
strength training
injuries
You have in mind a companion for crossfit and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of crossfit in all years. Click on graph for more.
crossfit
p90x
bodybuilding