Beating The Legend of Zelda: Breath of the Wild doesn’t take very long, if you’re simply beating the four divine beasts and conquering Ganon, but there’s a number of things you can (and should) do after beating the main storyline of the game.
WARNING: Obviously there’s some spoilers below, but if you’ve finished the game and you’re looking for this kind of information, then it shouldn’t bother you.
GO SHRINE HUNTING
Chances are, you won’t have found every single shrine before beating Ganon. There’s 120 shrines to find in the game (with more coming in DLC).