It's already up in different sportsbook, but on the sportsbook i'm using, you can check their Alvarez, Saul - Crawford, Terence odds

Canelo is the favorite, as expected, but the bookies are giving Crawford 2.28 odds, pretty interesting for bettors who are willing to take a shot on him.
For now, only the main market is available, so we’ll have to wait and see if more betting options open up soon.