2019 NFL free agency preview: Considering Tyrell Williams as a potential 49ers target - Niners Nation
49ers 2016 free agency preview: linebacker
Broncos, John Elway have enough room to play smart in NFL free agency – The Denver Post
San Francisco 49ers 2016 Team Preview and Prediction
Breaking Down 49ers Salary Cap Situation Before Free Agency
NFL Free Agency: Projected cap space for 2015 and 2016 seasons - Cincy Jungle
The 49ers Are the Force That Controls 2018 Free Agency - The Ringer
Allen Robinson, Sammy Watkins could upgrade 49ers WR unit
Colin Kaepernick agrees to restructured contract that lops off the last $65.3 million in exchange for chance to become a free agent
49ers free agency: San Francisco has the cash, QB options it needs for a turnaround
How the 49ers went from 4 wins to Super Bowl 54 in just one year