Suggestions for Forest

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

Package forest-ext: Additional Forest libraries providing bug fixes, extensions and support for tagging
Package tikz-dependency: A library for drawing dependency graphs
Package prooftrees: Forest-based proof trees (symbolic logic)
Package pst-tree: Trees, using PSTricks
Package worldflags: Drawing flags with TikZ
Package pst-tvz: Draw trees with more than one root node, using PSTricks
Package tikz-timing: Easy generation of timing diagrams as TikZ pictures
Package tikz-qtree: Use existing qtree syntax for trees in TikZ
Package xistercian: Cistercian numerals in LaTeX
Package pgfornament-han: pgfornament library for Chinese traditional motifs and patterns
Package pgfgantt: Draw Gantt charts with TikZ
Package binarytree: Drawing binary trees using TikZ
Package utfsym: Provides various Unicode symbols
Package tikz-nfold: Triple, quadruple, and n-fold paths with TikZ
Package istgame: Draw Game Trees with TikZ
Package pst-jtree: Typeset complex trees for linguists
Package tikz-dimline: Technical dimension lines using PGF/TikZ
Package tonevalue: Tool for linguists and phoneticians to visualize tone value patterns
Package orcidlink: Insert hyperlinked ORCiD logo
Package pgf-umlcd: Some LaTeX macros for UML Class Diagrams
Package pgf-pie: Draw pie charts, using PGF
Package pgf: Create PostScript and PDF graphics in TeX
Package tikzducks: A little fun package for using rubber ducks in TikZ
Package tikzlings: A collection of cute little animals and similar creatures
Package tikzmarmots: Drawing little marmots in TikZ
Package tikzbricks: Drawing bricks with TikZ
Package broydensolve: Solve a system of equations with Broyden’s good method
Package liftarm: Geometric constructions with liftarms using TikZ and LaTeX3
Package polyomino: Polyominoes using TikZ and LaTeX3
Package spath3: Manipulate soft paths in PGF
Package tikzpingus: Penguins with TikZ