Suggestions for l3experimental

The following packages have something in common with the package l3experimental. The packages are ordered in decreasing similarity.

Package xcoffins: Rich boxed material for LaTeX 3
Package l3keys2e: LaTeX2ε option processing using LaTeX3 keys
Package xargs: Define commands with many optional arguments
Package etl: Expandable token list operations
Package expl3: Wrapper package for experimental LaTeX3
Package zhlipsum: Chinese dummy text
Package xfp: Interface to the LaTeX3 floating point unit
Package xparse: A generic document command parser
Package xtemplate: A high-level interface for declaring document commands
Package functional: An intuitive functional programming interface for LaTeX2
Package l3packages: High-level LaTeX3 concepts
Package xgalley: Control text feeding onto the page
Package xfrac: Split-level fractions
Package hawkdraw: Draw vector graphics using l3draw with a simple syntax
Package forloop: Iteration in LaTeX
Package l3regex: Regular expression facilities for LaTeX
Package unravel: Watching TeX digest tokens
Package emptypage: Make empty pages really empty
Package hardwrap: Hard wrap text to a certain character length
Package nowidow: Avoid widows
Package vruler: Numbering text
Package midpage: Environment for vertical centring
Package rotpages: Typeset sets of pages upside-down and backwards
Package linegoal: A dimen that returns the space left on the line
Package hanging: Paragraphs with a hanging indent
Package eolgrab: Catch arguments delimited by end of line
Package savesym: Redefine symbols where names conflict
Package flags: Setting and clearing of flags in bit fields
Package twoopt: Definitions with two optional arguments
Package authoraftertitle: Make author, etc., available after \maketitle
Package aliascnt: Alias counters