Hi, ST!
I hope the move is going well.
I thought of some specific examples of Outer planar creatures (and some from the Prime Material plane that are related).
Celestial Ki-rin and their PM cousin, Ki-rin, or their cousin, the Dragon Horse
Tuen-rin
Celestial Lammasu and reg'lar Lammasu
Coual
Oliphants
Maeliphants
Titans
Warden Beasts
And not necessarily from the Outer Planes: NPCs of the famous variety and Avatars.