There are many more 2017 Fantasy Football Rankings and features here, including tons of 2017 Fantasy Football Mock Drafts, Player Rankings, Sleepers and Busts. Also, an extensive 2017 NFL Fantasy Football Preseason Stock Report.
2017 Fantasy Football Rookie Rankings: Dynasty
Leonard Fournette, RB, Jaguars
Tom Coughlin told Leonard Fournette that he wants him to put the ball into the end zone. I'm sure Fournette's fantasy owners will appreciate that mindset. Fournette should open as an RB2, but it wouldn't surprise me if he closed out as a fantasy RB1 to finish the 2017 campaign. Jacksonville didn't select him fourth overall to split a workload.
Christian McCaffrey, RB, Panthers
Christian McCaffrey will split the running workload with Jonathan Stewart for the first year or two, so he'll be a much more exciting PPR option in the early going. McCaffrey is likely to catch a ton of passes, as Cam Newton will aim to get McCaffrey involved rather than do almost everything himself. McCaffrey's outlook will improve when Stewart moves on.
Joe Mixon, RB, Bengals
Joe Mixon would've been a top-15 pick had he not punched a woman several years ago. However, the Bengals have given him a second chance, and he'll have an opportunity to become a stud running back in the NFL. Mixon will be splitting time with two other running backs as a rookie, but for the long haul, there's RB1 potential if he can stay out of trouble.
Dalvin Cook, RB, Vikings
Dalvin Cook slipped in the 2017 NFL Draft because of some character concerns and poor testing numbers. However, he has excellent vision, and it'd be an upset if he didn't start at some point in the near future.
Alvin Kamara, RB, Saints
Alvin Kamara will have to compete with Mark Ingram and Adrian Peterson for touches. That may make Kamara sound unappealing, but Ingram was benched last year for Tim Hightower, while Peterson looked decrepit when we last saw him. Kamara could be a big producer by the end of 2017, and he looks even better in dynasty/keeper formats.
Mike Williams, WR, Chargers
Mike Williams is a big threat, whom I'm sure Philip Rivers will target frequently in the red zone. Williams could be the Chargers' No. 1 receiver at some point this year if Keenan Allen gets hurt again. Allen has an extensive injury history, so there's plenty of potential for Williams to be a great fantasy receiver for the long haul.
Corey Davis, WR, Titans
At least one team was going to pass on Corey Davis in the second round because of durability concerns. Davis was overdrafted, but he'll serve as a big target for Marcus Mariota, who is excellent in the red zone. Steve Smith compared Davis to Terrell Owens, so there's definitely upside here.
Joe Williams, RB, 49ers
Joe Williams has a chance to be San Francisco's starting running back, as the scuttlebutt is that the 49ers don't like Carlos Hyde in their offense. Kyle Shanahan specifically asked John Lynch to spend a fourth-round pick on Williams, so I'd have to believe that Williams will see some sort of a workload as a rookie, which I'm betting will increase as the season progresses.
Kareem Hunt, RB, Chiefs
Kareem Hunt catches passes out of the backfield well and happens to be a great fit in Andy Reid's offense. He'll compete with Spencer Ware to be the starting running back, and there's a very good chance Hunt will win the job.
John Ross, WR, Bengals
John Ross has 4.21 speed, but his ability doesn't mesh well with Andy Dalton's limitations. Still, he should be productive with the Bengals, and he could eventually flirt with WR2/WR3 status. I wouldn't draft him until late this year, however.
O.J. Howard, TE, Buccaneers
Though O.J. Howard has great long-term potential in keeper/dynasty leagues, I would avoid him in re-draft formats this year, as rookie tight ends seldom produce on a high level. Howard could catch six to eight touchdowns, but he'll be sharing targets with lots of other weapons.
Marlon Mack, RB, Colts
Given that Frank Gore is now 34, Marlon Mack could conceivably start a handful of games as a rookie. If he shows well, he could be Indianapolis' starting running back in 2018 and beyond.
Zay Jones, WR, Bills
Zay Jones is likely going to be Buffalo's No. 2 receiver this season, but he'll be the top wideout the following year because the Bills are allowing Sammy Watkins to walk for some reason. Jones has WR2 potential for the future, but as for now, he's a WR4 without much upside because of Tyrod Taylor.
David Njoku, TE, Browns
David Njoku has great potential, but also happens to be very raw. He'll have every opportunity, with the Browns cutting Gary Bardnidge, but he can't be trusted as a rookie. His value will soar if the Browns can eventually find a competent quarterback.
Evan Engram, TE, Giants
Evan Engram has drawn comparisons to Jordan Reed coming out of Ole Miss, so he definitely has tons of potential. However, he's difficult to trust right away because he's a rookie tight end, and Eli Manning won't be around for the long haul, so Engram's long-term future is somewhat cloudy.
Deshaun Watson, QB, Texans
Several teams had third-round grades on Deshaun Watson, so he was a major reach. However, he'll likely start as a rookie, and if he does, he'll pick up plenty of rushing yardage, making him a viable QB2.
Jamaal Williams, RB, Packers
The only running back Jamaal Williams has to pass on the depth chart is Ty Montgomery. He'll get competition from fellow rookie Aaron Jones, but he has high upside as a late-round flier.
Aaron Jones, RB, Packers
This is an almost copy-paste: The only running back Aaron Jones has to pass on the depth chart is Ty Montgomery. He'll get competition from fellow rookie Jamaal Williams, but he has high upside as a late-round flier.
Samaje Perine, RB, Redskins
Samaje Perine has a legitimate chance to be the Redskins' starting running back. Either way, he'll split the workload with Robert Kelley early in his career. Perine has RB2-type upside in 2017, as the Redskins' running back competition will be an interesting one to watch.
JuJu Smith-Schuster, WR, Steelers
JuJu Smith-Schuster has potential to produce as a rookie because of the offense he plays in. However, he'll have to compete with Martavis Bryant and Sammie Coates - they can argue whom he'll supplant - and Smith-Schuster was just seen as a Round 2-3 prospect anyway.
D'Onta Foreman, RB, Texans
Lamar Miller is entrenched as Houston's starting running back, but D'Onta Foreman could start some games if Miller goes down with an injury. It remains to be seen if Foreman will even be the No. 2 running back, but he has a good chance to be. He could also be the starter in some time.
James Conner, RB, Steelers
DeAngelo Williams is gone, so James Conner was drafted to be Le'Veon Bell's direct backup. Considering that Bell misses time every year, Conner should be able to start some games, so he's not a bad late-round choice.
Curtis Samuel, WR, Panthers
Curtis Samuel will play Ted Ginn's role in Carolina's offense. Samuel has some long-term potential, but there are suddenly too many mouths to feed in Carolina.
Wayne Gallman, RB, Giants
Wayne Gallman has a chance to start some games for the Giants this season, but he'll likely be in a heavy rotation. Still, the upside is there, as the Giants don't have any strong running backs.
Patrick Mahomes, QB, Chiefs
Patrick Mahomes has Brett Favre upside, but still needs time to be developed. It might be a couple of years before he starts.
Donnel Pumphrey, RB, Eagles
Donnel Pumphrey projects to be the next Darren Sproles, and Sproles has told the media that he plans on retiring after this season.
Gerald Everett, TE, Rams
Gerald Everett is an athletic player with upside, but he'll never reach his statistical potential as long as Jared Goff is playing quarterback.
Adam Shaheen, TE, Bears
Adam Shaheen is extremely athletic, but very raw. It could be a while until he contributes, especially as long as Zach Miller is on the roster.