My subpage for templates in Category:Article talk namespace templates.
(Category:Article talk templates should probably soft redirect here.)
This category can include GA nomination templates, FAQ subpage templates, etc. Not all of these templates are header templates, so this category is probably a meaningful distinction.
This needs reorganizing, and possible rescoping; all of my GA-related additions have dilluted this page's original purpose. Perhaps many of these portions should be migrated to the parent page, and this page refocused to its original goal of article talk templates. After all, those comments are only steps on the journey to improving article talk templates. But some of the GA-related templates are extremely related to article talk, so maybe GA templates just need their entirely separate templates user subpage for organizing; I could then take advantage of {{main}} crosslinking between my user pages.