Boehme is Penn State's fifth offensive lineman in the Class of 2023.
Porter's combination of athleticism and length makes him a likely first-round pick.
Mike Gesicki is reportedly joining the New England Patriots after spending the first five years of his career with the division-rival Miami Dolphins.
The Beaver Stadium addition is scheduled to be completed before the 2023 season.
Sanders is heading to the Panthers after spending the first four years of his career with the Eagles.
"His ability to relate to the players and recruits is also going to be a strength of his. He has the ability to be hard and demanding on them in a way that they respect and can relate."