13,394 NPCs

Classic reference; current Forever availability is unconfirmed.

NPCLevelTitleZone
Bristleback Water Seeker16–17The Barrens
Bristleback Thornweaver18–19The Barrens
Bristleback Mystic21–22
Bristleback Geomancer19–20The Barrens
Razormane Hunter11–12The Barrens
Razormane Defender12–13The Barrens
Razormane Water Seeker10–11The Barrens
Razormane Thornweaver10–11The Barrens
Razormane Geomancer12–13The Barrens
Elder Mystic Razorsnout15The Barrens
Razormane Mystic13–14The Barrens
Kolkar Wrangler12–13The Barrens
Kolkar Stormer13–14The Barrens
Kolkar Pack Runner14–15The Barrens
Kolkar Marauder15–16The Barrens
Witchwing Harpy14–15The Barrens
Witchwing Roguefeather15–16The Barrens
Witchwing Slayer16–17The Barrens
Witchwing Ambusher17–18The Barrens
Witchwing Windcaller17–18The Barrens
Sarkoth4Durotar
Venture Co. Mercenary15–16The Barrens
Venture Co. Enforcer14–17The Barrens
Venture Co. Drudger14–15The Barrens
Venture Co. Peon13–14The Barrens
Venture Co. Overseer15–18The Barrens
Hana'zua2Durotar
Deek Fizzlebizz27Journeyman EngineerLoch Modan
Greishan Ironstove24Traveling MerchantLoch Modan
Brewmaster Drohn9The Barrens
Rezlak5Tinkers' UnionDurotar
Ophek10Durotar
Sludge Beast19The Barrens
Orgrimmar Grunt55Orgrimmar
Sen'jin Watcher25–30Durotar
Gabrielle Chase53Food & DrinkBurning Steppes
Adder1The Barrens
Master Vornal11Durotar
Grisha55Wind Rider MasterSearing Gorge
Keldas40Pet TrainerTeldrassil

Classic reference data from QuestieDB (Forever data, commit c5de61a), with positions on Forever's zone maps. It doesn't confirm that an NPC, location, quest or item is in Forever.