I am assuming the Tua's to Miami just makes too much sense. He's healthy and interviewed great. They acquired the draft capital for this moment and their owner went on record and said exactly that after the season. Detroit at 3 has almost nothing to lose by dropping two spots. Young will likely go at 2 (despite rumors otherwise). They pick up Miami's last 1st rounder or one of their seconds at minimum.
If 2 of these 4 teams have interest: Chargers, Panthers, Jax, or Vegas we have competition to trade up. Giants probably have no interest to trade back further than 9 and 12 I would assume would be the max.
The ideal of course should Tua go to Miami would be Chargers and Panthers to both want Herbert. That means our max drop is only a couple of spots and likely still getting OT1 or worst OT2.