If Pokemon made an ash series about legends z-a what team would you give him?

I'm not sure if adding the spoiler tag cause of the megas but whatever. i'm talking not about just giving him the 6 he had in kalos and replace greninja-ash with it's mega, i mean 4-5 new companions that could be interesting in being a pokemon from Ash. Because if you really think about it, between the ones he already used, the ones that had past members of his journey, options remaining are quite interesting.