Unlike in baseball -- in which signing discussions lead to pre-draft leaks -- hockey teams hold their cards close until the last second prior to the start of the draft.
To wit, one team's head scout (a team not in the first few picks) responded to a question as to whom they'd be targeting in the first round by saying: "Auston Matthews -- hoping he falls to us."
This mock is my best estimation of how I think the first round will play out, with caveats added as necessary.