To explore ways of bringing Lisp to wider ranges of audiences, I prefer indentation based syntax like:

    ->
      range 100
      map $ fn (x)
        * x x
      foldl 0 &+
      println

which is S-Expressions with indentations, with in-line paren pairs. It looks a lot like Python by still using prefixed operators and it's still S-Expressions after parsing to remain homoiconic.

And my prototype language http://calcit-lang.org/ .