[Cactus2018]

For graphs beyond ggplot2, I am happy for the various D3 to R packages, such as

networkD3 (for Sankey diagrams) - https://christophergandrud.github.io/networkD3/ ,

R2D3 - https://rstudio.github.io/r2d3/ , and

htmlwidgets - http://www.htmlwidgets.org/