You can find them all on EA's Github page. As for the Steam Workshop? That's getting switched on for C&C Renegade, C&C Generals and Zero Hour, C&C 3 Tiberium Wars and Kane's Wrath, and C&C 4 Tiberium ...
A Game of Thrones has become one of the most popular mods for Crusader Kings 3 the instant it showed up on the Steam Workshop ...