None of these guys are leaving their current schools. Also Berge will never see 174 outside of Stillwater.
Unless Kerk doesn't return -- and all indications are that he will -- the only transfer that seems at least somewhat likely is at 197. And then Cael would be looking at a 1-yr rental, because Connor Mirasola is too good to sit after a shirt.
One name to watch: Cornell 197 Jacob Cardenas. He's not yet in the portal but is graduating with 1 year left, and has publicly said he intends to use that year. That means he's gonna grad transfer somewhere. He's a 2x AA, finished 4th this year, and is from NJ. If he's interested in PSU, Cael will likely listen.
Also, if Kerk doesn't return, they might tell Cochran to eat. HWT is not terribly strong outside the very best guys -- plus 3 AAs graduate and Cochran handily beat another one. With another 15-20 lb (plus not cutting), he could have a real shot at the podium.