|The Dandy Lion|
Checking my 3pp library I found these:
Mnemonic from Liber Influx Communis by Amora Games gets it at 2nd level.
La Rosa from Alternate Paths Divine from Little Red Goblin Games gets Canny Defense at first level.
Unarmored and Dangerous by Purple Duck Games offers a number of archetypes with Canny Defense at first level, for the rogue, ranger, alchemist, summoner and two for the magus. It also has two new classes with it, the Boxer and the Fencer.
The Swordmaster by Dreadfox Games gains a deflection bonus equal to class level, up to his intelligence modifier.