Spreadsheet allowing you to sort by affiliation (axis/allies), unit name, unit type, skill name, and description. I found it easier to make this to look up 'which units have which skills' at a glance.
Use Excel's "filter" tool to enable sorting by column titles. You can which units offer which skills, which skills are unused so far, as well as what Command Squad skills are available.
Intention is to add to this as new units come along. I've already listed some announced-but-not-released units, and what I know so far. Also, found some errors due to Core Set and later mini's packs from FFG overlapping. Watch for v1.1 soon as it goes up.