The best replacement for clouds is fog.

The best alternatives to clouds are rated as following:
★★★★★  fog
★★★  chemtrails
★★  cloud
★★  cirrus clouds
★  grids
★  haze
★  zebra danios
★  bizness apps
★  stratus clouds
★  cirrus
  low clouds
  cumulus clouds
  high clouds
  snow clouds
  broken clouds
  rain clouds
  silver linings
  bones atf
  mountains
  cold clouds
  grey clouds
  partly cloudy

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

Other search terms related to clouds and their ratings are:
★★★★★ rain
★★ sunshine
★★ lightning
★ sun rays
★ sun
★ snow
rainbows
sun rays tattoo
rainbow
You have in mind a companion for clouds and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of clouds in all years. Click on graph for more.
clouds
fog
chemtrails