Larry would be whatever the hell he wants to be today. He would be Luka, Lebron, Jokic. There's a slower, taller, heavier dude that's been doing it "his way" as the best player in basketball for 5 years now. He's been called a center since he's been in the league, he's been Denver's point guard for the last 5 years.
Power forward isn't even really a position in today's game if we're being honest. Malone, Oak, Buck...they don't exist anymore. If they did Sanogo would be picking up double doubles and making 10's of millions. Larry would choose his position and the team would revolve around him.