Suggestions for marginnote

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

• notes: Mark sections of a document
• debate: Debates between reviewers
• mindflow: Write your ideas in a clear way
• versonotes: Display brief notes on verso pages
• parnotes: Notes after every paragraph (or elsewhere)
• todo: Make a to-do list for a document
• easyreview: Package to provide a way to review (or perform editorial process) in LaTeX
• easy-todo: To-do notes in a document
• edmargin: Multiple series of endnotes for critical editions
• fixmetodonotes: Add notes on document development
• minipage-marginpar: Minipages with marginal notes
• threeparttable: Tables with captions and notes all the same width
• threeparttablex: Notes in longtables
• mbenotes: Notes in tables or images
• fixme: Collaborative annotation tool for LaTeX
• pagenote: Notes at end of document
• zennote: Streamline your note-taking process!
• unifront: Give notes a unique front page for every chapter and section
• scrambledenvs: Create and print scrambled environments
• snaptodo: A todo that snaps to the closer side
• ezedits: Commands for tracking document changes and notes
• chuushaku: Flexible book notes in Japanese
• scrlayer-notecolumn: Control note columns parallel to the main text
• ktbox: Framework for semantic color, structured highlighting, and scholarly communication
• notespages: Filling documents with notes pages and notes areas
• notestex: An all-in-one LaTeX notes package for students
• zebra-goodies: A collection of handy macros for paper writing
• notes2bib: Integrating notes into the bibliography
• todonotes: Marking things to do in a LaTeX document
• skeldoc: Placeholders for unfinished documents
• whatsnote: A LaTeX class designed for taking notes or writing books