In terms of pure snap count...
Our Freshman QB, EDGE, OL, CB have literally zero chance.
That leaves RB, WR, TE, DT, LB, S.
Of those position groups the most likely are Jordan Lyle, Jojo Trader, Ny Carr, Elija Lofton, Justin Scott, Cameron Pruitt, and Zaquon Patterson
I'd say Jordan Lyle has a VERY sneaky good chance of being one of the highest snap count freshman. Like if Fletcher Redshirts due to injury, Lyle WILL play a lot imo - probably at least 200 snaps if that's the situation. Lofton is going to play and likely have a solid impact especially for a freshman. But will he really play more than a WR given he's going to be TE3 to start with, and we are obviously going to run way more 3-4 WR sets than 3 TE sets. I'd say Trader/Carr have a good shot out snapping Lofton - as along with Lyle have the easiest path to PT of our freshman. The real question will be the 3 defensive freshman I have listed. Patterson has the easiest path to a **** load of PT. Justin Scott could play a lot due to talent, but is the most difficult just due to positional difficulty. Pruitt is tough because he'll definitely play a good amount, but A) We are likely going to run a lot of 2 LB formations, and have 3 upperclassman that are ahead of him on depth chart. I see Pruitt probably getting in the 100-150 range of snap count. Patterson has an easy path to surpassing that. As do the WRs and Lyle.
I'm going to go with Patterson, Lyle, or Trader. I'd lean Lyle though.