Trading down with Cincy is an option. They want Sewell, could pick up their 2nd round and some other additional picks to move down 2 spots.
If they stay at # 3. Sewell, Smith or Chase. If Miami decides they want a WR with the first pick, the trade down should be the route to go and grab more picks.
If Miami drafts Sewell at #3, I think they should grab Harris or Etienne. Go after WR in the 2nd round at that point.
If Miami decides on WR at #3 or in a trade down. I still think they need to get either Harris or Etienne and then go after OL in 2nd round.
Either way they have the draft ammo to address both OL, WR, RB. This is the most important draft in the last 30 plus years for this franchise. They have to hit on the picks.