If Adagia creates a token copy of an Aura, you choose what the token is enchanting as it enters the battlefield. This doesn’t target the player or permanent it will enchant, so a player or permanent with hexproof may be chosen this way. The chosen recipient must be able to legally be enchanted by the Aura, so a player or permanent with protection from one of the Aura’s qualities can’t be chosen this way. If there’s nothing legal for the Aura token to enchant, the token is never created.