Suggestions for PGFPlots

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

Package pgfplotstable: Loads, rounds, formats and postprocesses numerical tables
Package tikz-ext: A collection of libraries for PGF/TikZ
Package worldflags: Drawing flags with TikZ
Package atableau: A LaTeX package for symmetric group combinatorics
Package tikzviolinplots: Draws violin plots from data
Package tikz-timing: Easy generation of timing diagrams as TikZ pictures
Package tikzfxgraph: Plotting functions in a simplified way
Package bodeplot: Draw Bode, Nyquist and Nichols plots with gnuplot or pgfplots
Package bodegraph: Draw Bode, Nyquist and Black plots with gnuplot and 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 dynkin-diagrams: Draw Dynkin, Coxeter, and Satake diagrams using TikZ
Package sankey: Draw Sankey diagrams with TikZ
Package forest: Drawing (linguistic) trees
Package utfsym: Provides various Unicode symbols
Package lie-hasse: Draw Hasse diagrams
Package tikz-nfold: Triple, quadruple, and n-fold paths with TikZ
Package tikz-bbox: Precise determination of bounding boxes in TikZ
Package tikz-dimline: Technical dimension lines using PGF/TikZ
Package tikz-bpmn: A TikZ library for creating BPMN models
Package tikz-swigs: Horizontally and vertically split elliptical nodes
Package tikz-bayesnet: Draw Bayesian networks, graphical models and directed factor graphs
Package tikz-nef: Create diagrams for neural networks constructed with the methods of the Neural Engineering Framework (NEF)
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