Beeswarm plot?

[mbostock]

Some sort of dodge transform?

[Fil]

See https://observablehq.com/d/29e9f5c9191789f6 for a "plugin" approach (though in this case I used a forceSimulation not the dodge transform, but it's going to be very similar).

[Fil]

An approach could be to add a "compact" option to Plot.dodge
#815