Suggestions for sectionbreak
The following packages have something in common with the package sectionbreak. The packages are ordered in decreasing similarity.
- alnumsec: Alphanumeric section numbering
 - anonchap: Make chapters be typeset like sections
 - coseoul: Context sensitive outline elements
 - alphanum: Sectioning commands for jura
 - chbibref: Change the Bibliography/References title
 - fncychap: Seven predefined chapter heading styles
 - outliner: Change section levels easily
 - section: Modifying section commands in LaTeX
 - sectsty: Control sectional headers
 - nccsect: A re-implementation of sections, captions and tocs
 - topsection: An un-numbered top level section
 - secdot: Section numbers with trailing dots
 - crumbs: Add a Navigation Path to the page header
 - bsheaders: Double-ruled chapter heading style
 - quotchap: Decorative chapter headings
 - standardsectioning: Define sectioning commands identical to the standard classes
 - fancytabs: Fancy page border tabs
 - gradientframe: Simple gradient frames around objects
 - notes: Mark sections of a document
 - sectionbox: Create fancy boxed ((sub)sub)sections
 - shadowtext: Produce text with a shadow behind it
 - shadow: Shadow boxes
 - colorframed: Fix color problems with the package “framed”
 - froufrou: Fancy section separators
 - fancypar: Decoration of individual paragraphs
 - modular: Relative section headings for modular documents
 - tocvsec2: Section numbering and table of contents control
 - texilikechaps: Format chapters with a texi-like format
 - varsects: A simple package for controlling headings
 - serbianpart: Redefines \thepart to be used in Roman lettered Serbian
 - appendix: Extra control of appendices