If UCLA signs him it is going to be a Humbling experience for all of them.
Basically Nico is going to a team that plays in the B10 and a team that will always will have a limited watered down fan base as they share in a sports Market consisting of other college teams, major league sports teams. UCLA has not set the world on fire they last decade and probably will not regain it as they enter there 2nd year of playing a true P4 conference. There is a reason the PAC 10 folded. They have the corps fans and the other colleges and professional teams have many market share.
At least half of his games will not be seen on the East Coast. NICO's visibility will take a huge drop, he maybe mentioned as a Heisman Trophy candidate at some point but will never get the promotion like he would have at Tennessee. To do so he will have to win at least 9 games and I don't see that happening at UCLA.
If I were him, I would take a year off from football, get my crap together, continue to train and reenter the portal or recruitment.
I would not sign with anyone this year. I would sit out and try to return to SEC. The old Kiffin move.