Possibly https://pro.arcgis.com/en/pro-app/latest/help/analysis/networks/location-allocation-analysis-layer.h...
I'd imagine that you have a set of pre-determined supply points and then attempt to maximise coverage and minimize facilities. Considering the computation involved, I would absolutely not use demand points as individual houses/businesses etc, I would look to aggregate them into weighted points (the larger the aggregation area, the faster it will run, but also be less accurate, so probably look for the goldilocks zone, there could still also be so many combinations that it still takes a life age of the universe to run).
If you don't have a set of predetermined facility locations, I would probably generate a regular grid of points, again being aware that the combinatorics of those points could get horrendously large.
This is just what I have in my head rather than a defined workflow I'm sure would work.
