apm, rp2, r3w, oog scanned
Next system to scan is 7-8S5X (no moons registered on dotlan, 71 moons in total, no sov) could perhaps hold something.
D4K has 85 moons not registered on dotlan but is PL sov so could be hard to get to set a pos up there.
What we should look for is: chromium, cadmium or tungsten
If someone stumbles on any of the following it would be good as well but the likelihood is almost nil: scandium, technetium or hafnium