After programming in Common Lisp for a few years (a long time ago) and then later on having a brief period where I was fond of Python, I did also become fascinated with the concept of lisps where indentation replaces parenthesis such as Wisp:
https://www.draketo.de/software/wisp
Mind you - I usually end up concluding that Lisp syntax is actually pretty good as it is...
I've always been tempted with wisp. Ever since I saw SRFI-110. Love the concept.
I just never quite manage to grasp the new syntax.