Marked spoilers for Rebels S4 and The Mandalorian S2.
The final scene of Star Wars Rebels occurs after the events of the original trilogy with
Sabine recounting the exploits of the surviving Spectres from the liberation of Lothal to the Battle of Endor, and then Ahsoka arriving with the suggestion the two are to go off in search of Ezra, who was last seen being dragged off to an unknown destination by the purrgil along with Thrawn in the Rebels finale.
Then in Season Two of the The Mandalorian, Chapter 13: The Jedi, we have:
Ahsoka Tano hunting for Grand Admiral Thrawn.
What is the chronological order of these two events?