I honestly use no macros as White Mage, except for a text alert macro on my Raise. There are some that exist, which basically involve copying an action with different targetting priorities (eg three lines of "\ac "Cure" <tt>", where the <tt> becomes <t> and <me> in subsequent lines, to help ensure the healing is targetting the tank where possible). But even those have downsides, and are certainly not necessary.

I do have one friend who has a Cleric Stance macro which automatically rotates one of their hotbars (I don't know the text) from healing to damage spells and vice versa on click.