Suggestions for chemfig

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

• witharrows: “Aligned” math environments with arrows for comments
• polexpr: A parser for polynomial expressions
• tikz-cd: Create commutative diagrams with TikZ
• quiver: Draw commutative diagrams exported from https://q.uiver.app
• etoolbox-generic: A loader for etoolbox.sty in non-LaTeX formats
• visualtoks: Typeset TeXbook-style visualisations of token lists
• chemplants: Symbology to draw chemical plants with TikZ
• ltxcmds: Some LaTeX kernel commands for general use
• namedef: TeX definitions with named parameters
• pdftexcmds: LuaTeX support for pdfTeX utility functions
• texdimens: Conversion of TeX dimensions to decimals
• hologo: A collection of logos with bookmark support
• iftex: Am I running under pdfTeX, XeTeX or LuaTeX?
• youngtab: Typeset Young-Tableaux
• luakeys: A Lua module for parsing key-value options
• luamesh: Computes and draws 2D Delaunay triangulation
• schemata: Print topical diagrams
• pgfplots: Create normal/logarithmic plots in two and three dimensions
• lparse: Parse macro arguments with Lua using xparse-like specification
• quickreaction: A simple and fast way to typeset chemical reactions
• tikzorbital: Atomic and molecular orbitals using TikZ
• texapi: Macros to write format-independent packages
• eoldef: Define commands which absorb the whole source line as arguments
• etoolbox: e-TeX tools for LaTeX
• etex-pkg: E-TeX support package
• etoc: Completely customisable TOCs
• xskak: An extension to the skak package for chess typesetting
• forest: Drawing (linguistic) trees
• luatexja: Typeset Japanese with Lua(La)TeX
• pdfmsym: PDF Math Symbols — various drawn mathematical symbols
• chemarr: Arrows for chemists