Dain Dainja still has a lot of upside. He improved enough this season that he would attract a lot of interest as a portal free agent.
However, look at his game game log. He dominated teams like Morehead State; struggled against teams like Iowa State.
If money is close to equal, he likely stays. Would you pay market value NIL to keep him?
Others:
Goode graduated and still has a 5th year due to a medical red shirt. My guess is he returns if invited. A year of grad school is probably worth more than any NIL money he could attract.
Buck Harris might depend on who they bring in and how badly they want to keep him in terms of NIL dollars.