Suggestions for marginfit

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

Package mparhack: Work around a LaTeX bug in marginpars
Package snotez: Typeset notes, in the margin
Package marginfix: Patch \marginpar to avoid overfull margins
Package marginnote: Notes in the margin, even where \marginpar fails
Package sidenotes: Typeset notes containing rich content, in the margin
Package marginal: Extensions to \marginpar handling
Package marginalia: Marginal content anywhere with automatic adjustment for LuaLaTeX
Package flexipage: Flexible page geometry with marginalia
Package mnotes: Margin annotation for collaborative writing
Package sidenotesplus: Place referenced notes, alerts, figures and tables into the document margin
Package upgreek: Upright Greek letters
Package margbib: Display bibitem tags in the margins
Package zebra: Writing revision toolkits
Package babel-esperanto: Babel support for Esperanto
Package slashed: Put a slash through characters
Package dotlessj: Generates a dot-less j
Package chemarr: Arrows for chemists
Package centernot: Centred \not command
Package amsrefs: A LaTeX-based replacement for BibTeX
Package eqnlines: Single- and multiline equations
Package acronym: Expand acronyms at least once
Package appendix: Extra control of appendices
Package algorithms: A suite of tools for typesetting algorithms in pseudo-code
Package bxcoloremoji: Use color emojis more conveniently
Package boxedminipage: Framed minipages of a specified total width (text and frame combined)
Package chemarrow: Arrows for use in chemistry
Package changepage: Margin adjustment and detection of odd/even pages
Package chngpage: Change the page layout in the middle of a document
Package circledtext: Create circled text
Package cite: Improved citation handling in LaTeX
Package crossreftools: Expandable extraction of cleveref data