The main elements that would make sense to be mined from outside the Earth are those which on Earth have gone mostly into the inaccesible core of the planet, e.g. nickel, cobalt, germanium, the platinum-group elements. Such elements are indeed abundant in the iron meteorites, but they have low abundance in the lunar rocks.
The lunar rocks have huge quantities of iron, aluminum, titanium, manganese, which would be good for building structures on the Moon, but which are too cheap to be worthwhile to be brought to Earth.
I have not seen any estimate for this but I doubt that the total mass of iron meteorites that have fallen on the Moon is great enough to provide a quantity of valuable metals that would be worthwhile to be transported back to Earth.
Moreover, the iron meteorites that have fallen on the Moon are distributed uniformly over all it surface, they are not concentrated in some place like the ores on Earth. The cost of transportation until a processing place will be very large, because I doubt that there can be more than a few grams of iron meteorites per square meter.
Even with this extremely optimistic supposition, one would need to collect all the meteorites from several hundreds square kilometers to get a ton of cobalt (the average Co content in iron meteorites is a little less than 0.3%). For less abundant elements, like the platinum-group metals, the area will be multiplied by several orders of magnitude.
It is unlikely to find places on the surface of the Moon with significantly different chemical composition than other places, because the Moon has neither volcanoes nor flowing water, to create exploitable mineral concentrations.
The only chance to find a concentrated source of valuable elements on the Moon would be in the mascons (mass concentrations that are likely to be buried asteroids that have impacted the Moon early in the history of the Solar System), if any of the mascons is close enough to the surface to be reachable by digging.
Exploiting a Lunar mascon does not seem easy as their typical burial depth is estimated between 25 km and 125 km. Nevertheless, due to the lower gravity and to the lack of a hot interior, it might be possible to dig much deeper wells on the Moon than on Earth, e.g. maybe to a depth of 20 to 30 km, where some of the mascons could be reached.
There is no guarantee that any of the mascons has a metallic core, but the fact that they have a higher density than the Lunar rocks suggests that this is a possibility.