RFC8659 defines three different properties: 'issue', 'issuewild', and 'iodef'. That's it.
(CA/B Forum Ballots SC13 and SC14 added 'contactemail' and 'contactphone', but those aren't part of the RFC, and I only encountered 741 and 23 uses of these respectively, so let's ignore them.)
Ignoring misspelled records ("issiue", "issuewld", "iodev", ...), here are the CAA records by tag: