NFL Free Agency: Top players left following draft

The 2015 NFL draft is over, and now teams are filling out their rosters to get to the 90-man limit.

Some teams will reach that limited simply by signing their draft picks and adding a few undrafted free agents. However, others are still looking at veterans still waiting to be signed. One of the best on the market is middle linebacker Brandon Spikes, who just visited the Patriots.

If he doesn't sign with them, Spikes would easily be the best player left on the market. Other veterans of note include Knowshon Moreno, Ahmad Bradshaw, James Jones and Wes Welker. Most of the aforementioned guys are or have dealt with injuries that have caused their markets to dry up. In a situation role with the right team, most, if not all of them could make a positive impact for a team next year.

Here's a look at the best free agents still available at each position:

Quarterbacks

1. Michael Vick

2. Tarvaris Jackson

3. Matt Flynn

4. Terrelle Pryor

5. Case Keenum

Running Backs

1. Knowshon Moreno

2. Pierre Thomas

3. Ahmad Bradshaw

4. Ben Tate

5. Phillip Tanner

Fullbacks

1. John Conner

2. Will Ta'ufo'ou

3. Tyler Clutts

4. Jackie Battle

5. Montell Owens

Wide Receivers

1. James Jones

2. Wes Welker

3. Donnie Avery

4. Jerrel Jernigan

5. Greg Little

Tight Ends

1. Jermaine Gresham

2. David Ausberry

3. Chase Coffman

4. Michael Palmer

5. Zach Miller

Offensive Tackles

1. Joseph Barksdale

2. Anthony Collins

3. Byron Bell

4. Ryan Harris

5. Jermey Parnell

Guards

1. Justin Blaylock

2. Mike Pollak

3. Rob Sims

4. Charlie Johnson

5. Davin Joseph

Centers

1. Brian De La Puente

2. Chris Myers

3. Scott Wells

4. Jonathan Goodwin

5. Roberto Garza

Defensive Ends

1. Osi Umenyiora

2. Kroy Biermann

3. Da'Quan Bowers

4. Red Bryant

5. Trevor Scott

Defensive Tackles

1. C.J. Mosley

2. Barry Cofield

3. Kendrick Ellis

4. Letroy Guion

5. Brandon Deaderick

Inside Linebackers

1. Brandon Spikes

2. Mason Foster

3. Rolando McClain

4. Nate Irving

5. Dane Fletcher

4-3 Outside Linebackers

1. Lance Briggs

2. Jacquian Williams

3. Spencer Paysinger

4. Geno Hayes

5. James Anderson

3-4 Outside Linebackers

1.  Corey Wootton

2. Dwight Freeney

3. Sam Acho

4.Quanterus Smith

5. Shaun Phillips

Cornerbacks

1. Javier Arenas

2. Jarrett Bush

3. Aaron Ross

4. R.J. Stanford

5. Danny Gorrer

Safeties

1. Dawan Landry

2. Dashon Goldson

3. Dwight Lowery

4.  Bernard Pollard

5. Brandon Meriweather

Punters and Kickers

1. Mat McBriar

2. Jay Feely

3. Billy Cundiff

4. Rian Lindell

5. Sav Rocca