Big kudos to anyone who compiles a list of eqresource/alla's links for every single Hero AA so lazy gits like me can just go down the list checking them off in order
Basic List:
Omens of War - Trials of Mata Muram in Muramite Proving Grounds
Dragons of Norath - Sanctity of the Keepers / Fervor of the Dark Reign (Heroic toons start out only needing the 5th raid)
Call of the Forsaken (Savior achievements: Mercenary, Partisan, Hero)
The Darkened Sea (Savior achievements: Mercenary, Partisan, Hero)
The Broken Mirror (Savior achievements: Mercenary, Partisan, Hero)
Empires of Kunark (Savior achievements: Mercenary, Partisan, Hero)
Ring of Scale (Savior achievements: Mercenary, Partisan, Hero)
The Burning Lands (Savior achievements: Mercenary, Partisan, Hero)
the Whole expac ones often reward Heroic AAs for completing all of the Conquests achievements as well (Time Trial, Challenge of Toughness, other specific achievements usually based on the Hero missions)
Additionally while there, try to complete the Master Scavenger (Expac collections achievement) for CoTF, TDS, TBM, EoK) as those reward a Trophy collector AA. Initially you are limited to Four personal tribute trophies while burning Tribute, Each of the Trophy collector AA permits an addional one, so potentially 8 personal trophies adding stats durring tribute use)
Personal trophies can be earned in House of Thule & Veils of Alaris Savior achievements as well as others such as completing TDS group content.
There is PLENTY to do, I generally try to pick one or two achievements to work on and slug it out.
Hero's Journey Achievements: An Overview for the OOW & DON, the rest can easily be found in the In-Game /achievement listing