Suggestions for nccthm

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

Package create-theorem: Initializing and configuring theorem-like environments, with multilingual support
Package phfthm: Goodies for theorems and proofs
Package inkpaper: A mathematical paper template
Package nccbbb: Poor man’s blackboard bold
Package linkedthm: Hyperlinked theorem–proof environments for LaTeX
Package statementsp: Theorem and proposition boxes with preview and recall functions
Package reptheorem: Repetition of theorem environments
Package autobreak: Simple line breaking of long formulae
Package thmtools: Extensions to theorem environments
Package thmlist: A LaTeX package for adding theorem environments quickly
Package nccmath: Extended mathematics capabilities
Package thrmappendix: Theorems, lemmas, etc., in appendix
Package newproof: Make commands to define proofs
Package csthm: Customized theorem environments for computer science documents
Package coolthms: Reference items in a theorem environment
Package thmbox: Decorate theorem statements
Package shadethm: Theorem environments that are shaded
Package ntheorem: Enhanced theorem environment
Package propositions: Typeset and cross-reference named and numbered propositions
Package rmthm: Use a roman font for theorem statements
Package spalign: Typeset matrices and arrays with spaces and semicolons as delimiters
Package mboxfill: Fill free space with a pattern
Package nccparskip: Modify skips between paragraphs
Package nccrules: Compose dashed lines
Package nccboxes: Elaborate box commands
Package ncccomma: Use comma as decimal separator in mathematics
Package nccsect: A re-implementation of sections, captions and tocs
Package nccstretch: Insert a stretch between each token of a string
Package textarea: Control the text area dynamically
Package ncctools: A collection of general packages for LaTeX
Package keytheorems: An l3keys interface to amsthm