It depends. Athletes gotta put in a lot of work. Basketball players gotta practice, play 82 games + playoffs, train in the off season
A rapper studio time + touring + concerts + publicity stunts + appearances

but probably overall easier and not necessarily more fun
I think a rapper would have a better life with less wear and tear on their bodies and the rapper can continue to generate money making music for much longer than the athlete can keep playing but the athlete would win earnings wise on average.
In these scenarios am I guaranteed a Nipsey Hussle type deal where I make millions while independent or am I locked in a 360?