one) mining drones and hauling drones that you can equip on to a miner but it replaces a cargo slot for each

two) maybe add a mining ship you can get sooner? also maybe a one ship carrier? or something close

three) stealth fields as they could in interesting and a good balance is you can't use your weapons or actives while its is on and your speed is over all reduced

four) idk if this is already a thing but a mobile base could be a interesting idea were are base that can freely move around