The best replacement for 30fps is 24fps.

The best alternatives to 30fps are rated as following:
★★★★★  24fps
★★★★★  60fps
★★★  60fps video
★★★  25fps
★★  60fps gopro
★★  60fps gaming
★★  720p 60fps
★★  29.97
★  60fps better
★  24fps dslr
★  24fps video
  15fps
  60fps bf3
  1080p 24fps
  720 60fps
  1080p 60fps
  15 fps
  1080i 60fps
  60 fps
  29.97fps
  60fps games
  24
  720\/60fps

Your alternative for 30fps is not listed? Suggest!
Speaking about 30fps, one probably shouldn't forget about 24fps.

Other search terms related to 30fps and their ratings are:
★★★★★ 24fps
You have in mind a companion for 30fps and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of 30fps in all years. Click on graph for more.
30fps
24fps
60fps