Currently I have a playthrough right before twindrake city. Chose oshawott and even just recently caught a shiny mon.

But I started this file months ago and kinda feel like I rushed it I want to replay it. Don‘t tell me to replay white, because I am only missing super doubles and nat dex for all trainer stars there.

So I can‘t decide between tepig and snivy. I beat white with snivy. So what do you think I should choose?
I don‘t want oshawott because I beat the game with swampert and honestly it trivializes iris too much.
I am manipulating the starter for shiny colors and good nature either way.