Yes tobi not nagato sorry. If he used chibaku tensei, there would be no safe place to put a mark, the entire land would he sucked in. Tobi has much more chakra then nagato cuz of the bijuus so technically he could chibaku tensei something much larger.
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see the size?! all his kunais and the land around minato would be sucked in. Minato has no jutsu to destroy or he cannot use S/T to teleport chibaku tensei away. His only option is to run away very far by using a seal he prepared before the fight which would be conceding thus losing vs tobi. Tobi can afford to do this beacuse he can simply go intangible so he would not die from the chibaku itself.
And in the shinra tensei case, tobi would grab all the kunais to bait minato once he teleported to finish tobi. He could just izanagi to grab minato and consume his soul gg wp. Minato has no way to defeat tobi sorry.