The Ravens have added quality veteran wide receivers before, such as Derrick Mason, Anquan Boldin and Steve Smith Sr.
The Ravens could look to bolster their deep corps once again especially if pending unrestricted free agent Torrey Smith doesn't return.
Here's a look at who is out there (barring they sign with their current teams before free agency opens on March 10):
Randall Cobb, Green Bay Packers
Unrestricted; 24 years old; 5-foot-10, 192 pounds
2014 Stats: 91 catches, 1,287 yards, 12 touchdowns
Cobb is looking for a big contract after a breakout season. He's a quick, elusive threat, especially out of the slot. But how much of Cobb's production is a byproduct of playing with Packers quarterback Aaron Rodgers? He also has had injury troubles, as last year was the first time he started all 16 games.
Jeremy Maclin, Philadelphia Eagles
Unrestricted; 26; 6-foot-0, 198 pounds
2014 Stats: 85 catches, 1,318 yards, 10 touchdowns
Maclin has been a strong performer throughout his career. While he's been banged up for some of his early days, he started all 16 games last year and had his best season in Eagles Head Coach Chip Kelly's fast-paced offense. Maclin is a burner who also works the short and intermediate parts of the field well.
Torrey Smith, Baltimore Ravens
Unrestricted; 26; 6-foot-0, 205 pounds
2014 Stats: 49 catches, 767 yards, 11 touchdowns
Smith has been a favorite of fans and coaches since arriving in Baltimore in 2011. He had a huge season in 2013 with 65 grabs for 1,128 yards, but his stats regressed last year. He set a career low in yards and tied a career low in catches, but set a career high in touchdowns. Smith can take the top off a defense, but he hasn't made as many deep plays as he would like.
Michael Crabtree, San Francisco 49ers
Unrestricted; 27; 6-foot-1, 214 pounds
2014 Stats: 68 catches, 698 yards, 4 touchdowns
The former 10th-overall draft pick has never had a huge season, but he's been a pretty consistent performer. His best season was in 2012 when he posted 16 starts, 85 catches, 1,105 yards and nine touchdowns. Crabtree also has a history of injury problems with Achilles and knee tears. He is remembered in Baltimore from the waning minutes of Super Bowl XLVII when he was targeted three times for a game-winning touchdown but didn't convert.
Harry Douglas, Atlanta Falcons
Unrestricted; 30; 6-foot-0, 183 pounds
2014 Stats: 51 catches, 556 yards, 2 touchdowns
Douglas has been trapped in the shadows of Falcons monster receivers Julio Jones and Roddy White, but he's proven himself over the past two years. He topped 1,000 yards in 2013 when Jones and White dealt with injuries. Douglas is a solid possession receiver with some burst, but he's an older option.
Denarius Moore, Oakland Raiders
Unrestricted; 26; 6-foot-0, 190 pounds
2014 Stats: 12 catches, 115 yards, 0 touchdowns
If the Ravens lose Smith and are looking for a burner, Moore could be their man. Moore fell out of favor in Oakland after putting up good numbers in his first three seasons. Drops were part of the problem, but Moore also occasionally made eye-popping acrobatic catches.
Cecil Shorts, Jacksonville Jaguars
Unrestricted; 27; 6-foot-0, 127 yards
2014 Stats: 53 catches, 557 yards, 1 touchdown
Shorts was perhaps the Jaguars' top offensive weapon the past several years. He's a small-school prospect out of Mount Union who the Ravens liked in the 2011 draft. Shorts went on to put up nearly 1,000 receiving yards and seven touchdowns in his sophomore season while playing with the Jaguars' subpar quarterbacks. Shorts' production has diminished since then, however. Hakeem Nicks, Indianapolis Colts
Unrestricted; 27; 6-foot-1, 208 pounds
2014 Stats: 38 catches, 405 yards, 4 touchdowns
Nicks was a popular pick among Ravens fans last offseason. Now he's back on the market after just one year with the Colts. Indianapolis was hoping he could return to his 1,000-yard years when Nicks was one of the league's most exciting receivers in New York. That didn't happen, but Nicks did prove he can still be fairly productive. Perhaps just as important, he played in all 16 games for the first time in his career.