I'd like to see EDC break his pattern of loving additional picks and trade up this year. Go get one of the top pass rushers or offensive tackles. They won't be there at 27.
According to Pro Football Rumors, only two offensive tackles project to be first-rounders. As you said, they'll be long gone before the Ravens get to select.
Stanley could receive interest from teams such as New England and Jacksonville, both of whom have the need and the cap space to sign him. Kansas City could also be a dark-horse candidate given their struggles at that position all season and particularly the Super Bowl. I guess a lot depends on whether Stanley's goal is to maximize his value for one last big payday (if so, he's likely gone), or if he wants to be with a team with Super Bowl aspirations. If it's the latter, signing him could be doable.
I've seen suggestions of putting the tag on Stanley, but with the non-exclusive tag this year at $25.156 million, the Ravens would have to do some serious juggling to fit that under their cap.