The best champs outside of lane to counter 蒸汽机器人 include 皮城女警, 祖安花火, and 暴走萝莉. These champions are all good at countering 蒸汽机器人 with high win rates over 55%. Even if these 蒸汽机器人 counter picks are not picked opposite your position, it's not a good idea to choose him into any of these matchups. They will likely beat 蒸汽机器人.
Yet, if the other team picks either 爆破鬼才 or 狂暴之心, you should seriously think about selecting him, as he easily destroys these champions with win rates over 52% against each ofthem.