You're looking for CPAN

Happily, however, the journey is ongoing. As you come to understand more of what you encounter the urge to read code will become stronger and you'll find yourself skipping to the source before you read the documentation.

Note that it can be just as useful to read bad code as it is to read good, what's important is to keep interested in self-improvement.

There are loads of examples of funky Perl code out there but if you're looking for real-world good stuff, here are a couple of favourites:

• When I browse the source for Template Toolkit I am always in awe, thinking “man, that is so much more organised than my code!”.
• Newcomer CGI::Prototype is almost enough to make me give up coding altogether in how infuriatingly sensible it is (instead, I decided to use it as the basis for my latest project).

And look at the whizz-kids here. Perlmonks isn't like other forums¹, there are regular contributions from some of the best minds in the business that frequently question how [id://matthewb|this] little contractor writes his code.

[1]. Kidding about that link ;)