Gone will be Gilliam, Cooper, Miller, Jones, Douglas, Milano, Elam, and Morris. McGovern or Edwards could be the surprise cap casualties.
I know people want to believe Milano can come back but he will be 30 years old in March. His game is built on speed not power. It will be a sad day but he like White will be cut due to injury.
I'm not sure about Dawkins. He's still playing well. He has his good and bad moments. Probably not bad enough to move on from but also OT would seem like a need on day 2. Bills have nice depth on OL. They may decide to move on from either McGovern or Edwards to try and save some money and get the younger cheaper players on the field.
WR is going to be tough. Cooper on a 2 year deal with a 3rd year option would be ideal. Bills will probably be out bid though. My guess is they look to the free agent market for a guy that is not a top 5 but is someone who maybe is in the 15-20 range.
Look for Bills to extend at least three of the following Shakir, Benford, Rousseau, or Bernard. All are under contract for 2025 but my guess is they figure out a way to keep all four on the roster while extending three of them. I wouldn't even be shocked if they extended one of them this week.
As for the draft, look for a heavy and this time needed investment in the defense. Look for them to take a DT, DE, CB in the first four rounds. The other pick will either be a WR or OT. In the late rounds, a Punter, developmental QB, a safety, and a LB makes sense.