Tatto seems to be in two places - probably depends on what quests you have done on your toon. But you can check two places - to the left of Patchu or next to the left of the flight master.
Humanoid
Tatto
Stable Master
Tatto (Stable Master) is a Humanoid, level 30 to 70, friendly to players.
Details
Tatto at a Glance
What does Tatto do?
Level and Map Tracking
The game data tunes Tatto for levels 30 to 70, Dragonflight content.
In the Client Files
Standing toward playersFriendly
Collectibles Tatto Sells
The highest voted Wowhead comments for this page. They are community notes, not TheWoWDB comments.
Tatto is located at (13.2, 48.8)
Community notes from Wowhead · 4 comments
Top 2 shown above · 1 more hereThe comments below were written by Wowhead users. They are community notes, not TheWoWDB comments. See them in context on Wowhead.
Found him by the flight master.
Game Data
Creature ID186462
Display ID105793
Faction template3273
Content tuning2332
Related
Background
Art © Blizzard Entertainment. Fan reference, not affiliated.