Often referred to as Rods from God, but Syndicate Wars had the better name: Satellite Rain.

if space fuel is cheap you can just elongate your orbit and at the peak retro-burn to match the relative earth speed. Then release the cargo, it would fall with terminal velocity to earth. and burn with your cargo-craft back to establish the orbit.

Why not make a mostly-empty mesh from mined metals?

Someone talked about 3D printing mostly hollow golf balls in outer space and dropping them onto a desert where they could be picked up .