Well Black label are all elseworld tales. however batman white knight, batman curse of white night, batman white knight Harley Quinn and the upcoming batman beyond white knight are cannon to that universe, the three Jokers is actually cannon to the New 52, but not rebirth and Batman/Catwoman is interestingly complex in its canonicity as it ties into the Catwoman of rebirth outside Catwoman volume 5, and kings work in Detective comics issue 1000, 1027, Catwoman 80th anniversary. the fact that Catwoman vol 5 actually is out of sink with batman until Joker war.
I broke it down a lot better here: Batman/Catwoman Special Issue Discussion (Major spoilers)
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