I suppose Benjamin doesn't make it to 11, so if you need WR help, he's a good one to aim for at 3. Still want WR help, but aren't hard up for it, maybe you can wait until 11 and get Matthews, or Beckham?
For RB, I would think Sims is the guy to target? Although, I'm sure there's a few more in there, not sure if they make it to 11.
For LB, I really would need a list in front of me, but for the homer pick in me, Preston Brown for the Bills will have a chance at stepping in for Kiko Alonso. As to how far he'll fall, you'd have a better feel for that than I.
Right now i am thinking Andre Williams at three but he could fall or he could go to the guy who has the first two picks because he is a Giants fan and if Williams shows any signs that he will play I know this guy will probably jump on him. The other guy I was looking at you are correct was Kelvin Benjamin but he could go in the first two picks as well. After that there is no one I love at 3. But I love Dri Arhcer and aaron donald and am very confident i could get both at 11 and 17 also since I have Rodgers I could probably get Davante Adams with the 11th or 17th.
If you need help this year, you keep the 3rd pick. If you are pretty satisfied with your team you want the 11th and 17th picks because you can take guys that might need a little time for development. I mean what are the odds you are starting any of these guys anyway?
A guy I would target is Marqise Lee. Most likely will start and offers up the combo of being a special teams guy. His team will most likely be playing from behind most of the season so look to them to throw quite a bit. Not a great quarterback situation but could still put up decent numbers.
Also I would take the 2 picks. Very few rookies are going to contribute especially receivers. I think I read something like only 4 rookies over the last 10 or so years have had over a thousand yards receiving year one. RB's would be your best bet at this point especially with the number of injuries at the position but there again with teams doing the split carries they again don't get the greatest numbers. So that is why I would rather have 2 players with a chance to do something compared to just the one in hopes that they pan out.