The best replacement for tcl is perl.

The best alternatives to tcl are rated as following:
★★★★★  perl
★★  lua
★  seiki
★  ruby
★  sceptre
★  devant
★  changhong
★  soniq
★  hisense
★  skyworth
  qt
  expect

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

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



Google Trends

Scale is based on the average worldwide traffic of tcl in all years. Click on graph for more.
tcl
perl
lua