Suggestions for edmargin

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

Package eledpar: Typeset scholarly editions in parallel texts
Package eledform: Define textual variants
Package ledmac: Typeset scholarly editions
Package ledpar: Typeset scholarly editions in parallel texts
Package ledarab: Typeset scholarly editions in arabic
Package metre: Support for the work of classicists
Package edfnotes: Critical annotations to footnotes with ednotes
Package ednotes: Typeset scholarly editions
Package eledmac: Typeset scholarly editions
Package commedit: Commented editions with LaTeX
Package reledpar: Typeset scholarly editions in parallel texts
Package reledmac: Typeset scholarly editions
Package poemscol: Typesetting Critical Editions of Poetry
Package edmac: Typeset critical editions
Package ekdosis: Typesetting TEI-xml compliant Critical Editions
Package ed: Editorial Notes for LaTeX documents
Package debate: Debates between reviewers
Package mindflow: Write your ideas in a clear way
Package notes: Mark sections of a document
Package zennote: Streamline your note-taking process!
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