Suggestions for mathcmd

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

Package envmath: Maths commands and environments
Package sobolev: Commands for dealing with Sobolev spaces (and relatives)
Package dblfont: Blackboard bold font package
Package bosisio: A collection of packages by Francesco Bosisio
Package accenti: Extra accented character macros, designed for Italian
Package evenpage: Ensure that the total number of pages is even
Package graphfig: Simpler graphic, subfigure and float
Package quotes: Smart double quotes in LaTeX input
Package circle: Maths mode circles for temporal logic
Package mathgreeks: Use different Greek letter fonts in math mode
Package concrete-vec: Concrete text and mathematics as outlines, with a synthetic bold weight
Package fixcmex: Fully scalable version of Computer Modern Math Extension font
Package iwonamath: LaTeX support for scaled Iwona math fonts
Package mathbbol: Use the bbold fonts in mathematics
Package sansmath: Maths in a sans font
Package euler: Use AMS Euler fonts for math
Package hvmath: Support for using the Micropress HV-Math fonts (Helvetica Maths)
Package isomath: Mathematics style for science and technology
Package pzccal: Zapf Chancery as calligraphic math alphabet
Package pxgreeks: Shape selection for PX fonts Greek letters
Package mathcomp: Text symbols in maths mode
Package mathastext: Use the text font in maths mode
Package esint: Extended set of integrals for Computer Modern
Package mathtime-pln: Plain TeX macros for using MathTime and MathTime Plus
Package mathrsfs: Support for using RSFS fonts in maths
Package libgreek: Greek letters in math mode from Libertinus or Linux Libertine/Biolinum
Package mathtime-ltx: LaTeX macros for using MathTime and MathTime Plus
Package amsbsy: Produce bold math symbols (AMS-LaTeX)
Package maybemath: Make math bold or italic according to context
Package nccbbb: Poor man’s blackboard bold
Package sfmath: Sans-serif mathematics