Revali gets a Staraptor. Staraptor are loner birds and leave the flock they were born in when they become of age. Also because it’s normal type and tend to be overlooked, but as proved with Larry, a staraptor can be devastating
Teba gets a Braviary. The Pokédex entry for it states “ For the sake of its friends, this brave warrior of the sky will not stop battling, even if injured”. Reflects Teba’s resilience.
Tulin gets a Rowlet, evolves into Datrix by ToTK, and after completing the wind temple it fully evolves into a Decidueye. The Decidueye’s evolution from a grass/flying type to grass/ghost type also reflects how Link and Tulin defeated Colgera, hence losing it’s originally x4 weakness to ice (yes, it’s still x2 weakness to ice, but all flying types are like that.)