The list of LFG groups under Open World Content is typically HUGE, particularly after the expansion released. The search bar is helpful but I feel LFG could be more helpful. Here are my suggestions:
*Add a separate raid category similar to dungeons
*Expand the Open World Content category to have subcategories
*Heart of Maguuma HoT map meta subcategory
*Central Tyria pre-HoT map metas (Dry Top and Silverwastes in particular) subcategory
*Central Tyria map event chains (non-meta) subcategory
*World boss subcategory