What about a fighter equiped with a prospector lance able to test asteroids. It could then tag the asteroid with paint if it contained the searched materials.
It could also retrieve materials and bring it back to our ship where materials are droped close to our ship to ease drones work.
It could also directly drop material inside Mining ship hatch
It could also retrieve materials and bring it back to our ship where materials are droped close to our ship to ease drones work.
It could also directly drop material inside Mining ship hatch