Suggestions for notes

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

Package debate: Debates between reviewers
Package mindflow: Write your ideas in a clear way
Package zennote: Streamline your note-taking process!
Package fancytabs: Fancy page border tabs
Package gradientframe: Simple gradient frames around objects
Package sectionbox: Create fancy boxed ((sub)sub)sections
Package chuushaku: Flexible book notes in Japanese
Package ezedits: Commands for tracking document changes and notes
Package easy-todo: To-do notes in a document
Package fixmetodonotes: Add notes on document development
Package mbenotes: Notes in tables or images
Package notespages: Filling documents with notes pages and notes areas
Package snaptodo: A todo that snaps to the closer side
Package scrambledenvs: Create and print scrambled environments
Package scrlayer-notecolumn: Control note columns parallel to the main text
Package todo: Make a to-do list for a document
Package unifront: Give notes a unique front page for every chapter and section
Package edmargin: Multiple series of endnotes for critical editions
Package minipage-marginpar: Minipages with marginal notes
Package ktbox: Framework for semantic color, structured highlighting, and scholarly communication
Package zebra: Writing revision toolkits
Package easyreview: Package to provide a way to review (or perform editorial process) in LaTeX
Package modernclassnotes: Typesetting course notes, lecture handouts, and assignment worksheets
Package shadbox: Shade the background of any box
Package gitstatus: Include Git information in the document as watermark or via variables
Package highlightx: Highlight formulas or paragraphs
Package proofread: Commands for inserting annotations
Package parselines: Apply a macro to each line of an environment
Package roundbox: Round boxes in LaTeX
Package terminalcode: Terminal-style code display with ANSI colors, UTF-8 box-drawing, and dark/light themes
Package ullrcorners: Draw corners on the upper left and lower right sides of a word