The Billy Batson/Shazam casting thread

In the wake of learning what Dwayne Johnson's role is aka Black Adam, which pretty much confirms a Shazam movie, who should play Billy Batson and his Shazam form?



What kid would you cast as Billy and which actor would you cast for Shazam?



P.S. Is there anyone other than actors who got rejected from playing Superman we can cast for Shazam?