Per the good folks at Baseball America, here is the list of minor league free agents out of the Red Sox organization.
These are players with six years of service time who are not on the 40-man roster.
RHPs: Zach Hammes, Mark Holliman, Tyler Lavigne, Chad Paronto, Ramon A. Ramirez, Patrick Ryan
LHPs: Tommy Hottovy, Armando Zerpa
C: Dusty Brown
1B: Carlos Delgado
2B: Ray Chang, Luis Segovia
SS: Gil Velazquez
Check out the full list on Baseball America's website. There are almost certainly a few of these guys who will be signed by the Sox and invited to spring training.