I’d play him at QB. That’s where he’d have the most impact. He was also an all-state wide receiver in HS.

The U.S. handball coach said at the 2016 Olympics that LeBron would be the best Handball player in the world with 6 months of training: https://bleacherreport.com/articles/2657177-us-handball-coach-says-lebron-james-could-be-worlds-best-with-6-months-of-work

He’s an apex predator physical specimen and would’ve been great at pretty much any sport with proper training as a kid.