The best replacement for puberty is adolescence.

The best alternatives to puberty are rated as following:
★★★★★  adolescence
★  menopause
★  end of puberty
★  late puberty
  adolescent
  pubescence

Your alternative for puberty is not listed? Suggest!
Speaking about puberty, one probably shouldn't forget about growth spurt.

Other search terms related to puberty and their ratings are:
★★★★★ growth spurt
your son
You have in mind a companion for puberty and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of puberty in all years. Click on graph for more.
puberty
adolescence
menopause