Its all on opinion. But if you want a real answer check out this website and look for the partners stats : Bulbapedia.bulbagarden.net/
squirtle and pikachu will be the best
Totodile, with partner of Torchic
Riolu, Phanpy or vulpix
get it as your partner
you cant sorry sisy
It doesn't really matter, but I would get a water type or a fire type.
1. Your starter 2. Your partner 3. Kecleon or any other starter.
you can get him from a partner or leader
You either have to be it or chosse it as your partner
First, beat primal dialga. Then, you can play as any Pokemon you recruited including your partner.
From What I know I believe you can only get it as a partner or your main character in Pokemon Sky dungeon.
It doesn't really matter, but I would get a water type or a fire type.