Suggestions for Sankey

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

Package tikz-sfc: Symbols collection for typesetting Sequential Function Chart (SFC) diagrams (PLC programs)
Package prisma-flow-diagram: An abstraction for creating PRISMA 2009 flow diagrams with TikZ
Package atableau: A LaTeX package for symmetric group combinatorics
Package syntaxdi: Create railroad syntax diagrams
Package simplenodes: Simple nodes in four colors written in TikZ for LaTeX
Package chemplants: Symbology to draw chemical plants with TikZ
Package flowchart: Shapes for drawing flowcharts, using TikZ
Package tikz-timing: Easy generation of timing diagrams as TikZ pictures
Package pgfgantt: Draw Gantt charts with TikZ
Package dynkin-diagrams: Draw Dynkin, Coxeter, and Satake diagrams using TikZ
Package lie-hasse: Draw Hasse diagrams
Package tikz-nef: Create diagrams for neural networks constructed with the methods of the Neural Engineering Framework (NEF)
Package tikz-ext: A collection of libraries for PGF/TikZ
Package worldflags: Drawing flags with TikZ
Package tikz-relay: TikZ library for typesetting electrical diagrams
Package tikz-ladder: Draw ladder diagrams using TikZ
Package tikz-cd: Create commutative diagrams with TikZ
Package tikz-network: Draw networks with TikZ
Package commutative-diagrams: CoDi: Commutative Diagrams for TeX
Package quiver: Draw commutative diagrams exported from https://q.uiver.app
Package kblocks: Easily typeset Control Block Diagrams and Signal Flow Graphs
Package quantikz: Draw quantum circuit diagrams
Package braids: Draw braid diagrams with PGF/TikZ
Package causets: Draw causal set (Hasse) diagrams
Package trainmap: Draw railway line schematics and transit network maps with TikZ
Package yquant: Typesetting quantum circuits in a human-readable language
Package tikzphysics: TikZ-native shapes and anchors for classical physics diagrams
Package pgfplots: Create normal/logarithmic plots in two and three dimensions
Package zx-calculus: A library to typeset ZX Calculus diagrams
Package xistercian: Cistercian numerals in LaTeX
Package pgfornament-han: pgfornament library for Chinese traditional motifs and patterns