There is only one Cannon Team for a Protagonist, and that is Red. However, if you want there teams of their Champion/Last battle, then maybe we can get somewhere.
Red
Ethan/Lyra
- Marill
Mentions
Rattata
Tauros
Bulbasaur
Porygon
Tangela
Brendan/May
Lucas/Dawn
Calem/Serena
And that is all! As for the playable characters that didn’t get teams listed, it is because they have no teams, except for the teams you pick if you play as them. And as for Ethan/Lyra, they have a Marill in the catching tutorials, and then the catch the Rattata, and then they mention having the other Pokémon listed. Here is my source,
source, source, source, source, source, source, source, source.
Hope I helped!