I think we need to go get Higgins if he is available, first off. McVay needs another pass game weapon with threat and Higgins plugs right in to this offense. He is a form, fit, and function upgrade for this offense. He would be the centerpiece of my FA haul if I was planning this offseason.
Overall what I would do is use FA to finish this offense. Then I would draft defense again. This lines up with the fact that the strengths of this draft match our defensive needs. Corner is deep. DL is deep. Both get filled in the draft (I want a widebody run stuffing stud for the nose on the DL), and I would draft two corners if possible just to build some depth.
Only offensive position I would consider drafting up top in this draft is LT or TE.
We probably need to pay Alaric Jackson at LT or at the least tag him. That leaves us with options if a tackle they love gets to us. Doubt that happens but never know. If they plan on going OT in the draft then they may need to add the DT via FA. Personally I'd rather draft DT but we don't have that round 2 pick so we need to be smart this year with FA.