http://www.footballsfuture.com/2013/fa/rb.html
There are multiple pages that link from here.
Branden Albert (KC) - OT
Sebastian Vollmer (NE) - OT
Brandon Moore (NYJ) - OG
Andy Levitre (BUF) - OG
Andre Smith (CIN) - OT
Henry Melton (CHI) - DT
Cliff Avril (DET) - DE
Michael Johnson (CIN) - DE - As 6'7, 270 pound with terrific athleticism, the first round talent fell to the 3rd round due to rawness and questions about his motor. Making improvements in technique and putting to rest those concerns that caused him to drop as a collegiate prospect, he provided valuable pass-rushing snaps for the Bengals off the edge. 3 games into his 2012 season, his 4 sacks leave him a pair shy of his 2011 career-high. As a player on the rise with significant upside, Johnson will have the opportunity to make tens of millions dollars down the road depending on his performance this year.
Glenn Dorsey (KC) - DE/DT - The former 5th overall selection in 2008 hasn't been nearly as dominant as the Chiefs may have expected, but he has been a mainstay on the defensive line. At, 6'1, 297, Dorsey is strong and plays with natural leverage, allowing him to hold the point. He has great short-area quickness and is deft with his hands to shed blocks and locate the ball down the line of scrimmage.
Shaun Phillips (SD) - OLB - Phillips will be 32 heading into next year and with plenty of depth at outside linebacker, the Chargers could look to let him free if Melvin Ingram emerges into a stud down the stretch. Still, this scenario seems unlikely for a speed rusher on the wrong side of 30 who will command less than top dollar. However, to describe Phillips as just a speed rusher to the Chargers would be a falsehood. For many years, Shaun Phillips has been among the most underrated outside backers in the league and San Diego should recognize this better than anyone.
Connor Barwin (HOU) - OLB - After locking up Matt Schaub midseason, the Texans are in good position to use the franchise tag on Barwin should they be unable to reach an extension. On a defense predicated around the pass rush, Barwin is one of many remarkably-talented athletes to develop into very solid football players.
Sean Smith (MIA) - After trading another up-and-coming corner and former first round pick in Vontae Davis, the Dolphins showed confidence and placed a lot of stock in their long corner Sean Smith. If there's anything his career has shown so far, it's been inconsistency. If Smith gets everything to click for an entire season, he surely has Pro Bowl capability. Miami seems almost a lock to retain Smith, but the quality and consistency of his 2012 season will go a long way in determining the size and length of his contract.
Safeties:
William Moore (ATL)
Dashon Goldson (SF)
Jairus Byrd (BUF) - After a rookie season littered with fortunate passes thrown directly his way, Byrd's interception totals have normalized. Whereas the interceptions are no longer coming in bunches, Byrd has improved his game in other areas to become one of the league's better safeties. With great range and anticipatory skills in center field, Byrd is reliable free safety capable of forcing quarterbacks to hold the ball and double check his position on the field before throwing the deep ball. In a pass-heavy league, one of the best young safeties in the game should be high on the Bills' priority list this season.
Louis Delmas (DET) - Though Delmas has never broken free into the top tier of safeties, his absence has left the Lions reeling and pining for his return to the field where his reliability and hard-hitting ability has helped minimize the bleeding in the secondary. As the Lions look to find areas where they can improve, the secondary will be at the top of their list and within that priority list, retaining their own starting safety will be high up.