Chris Rivera, SS
El Dorado HS (CA)
From MLB's Draft Tracker:
Rivera is one of those California high school talents who became "famous" early, playing for USA Baseball's 14 and Under team at age 12. He has a simple approach at the plate with a quick, short stroke with gap power, making hard contact to all fields, especially with fastballs, when he's swinging the bat well. He's a fringy average runner, but his instincts allow that to play up on the basepaths. Rivera's real calling card is his defense, with good range and a very strong arm. While Rivera the defense to play short regularly, some scouts like him behind the plate, too, giving him some potential positional flexibility to add to his value, especially for those who question just how well the bat will play at the next level.
Rivera is a polished prep infielder who does many things easily but lacks the athleticism or quickness to make him a top 50 prospect even in this draft class. His swing is simple and direct, with a slightly deep load but good balance throughout... he's actually struck out more than he's walked as a senior, which is a significant negative. His actions aren't quick enough for shortstop, and he'll have to move to second base in pro ball instead.
Nice, easy swing and ball jumps off bat, Very good defensive MIF, Also lights out on mound 90-92 @ PG National
Big League Futures has an interview with him in which they use his name in the same sentence as another Future Redbird:
I think it’s important to note that Chris makes a very good arguement for best defensive SS in the country along with Oscar Mercado and JP Crawford.
Here's his prospect video from Bullpen Banter: