u/Jargif10

Haven't played the game in years but wanted to start a new game but with one twist. I want to immediately import a Pokémon that is not a starter to be my main. I did this in pokemon ultra sun where I imported a jangmo-o at level 5 right away and it was very fun. I like to basically have one pokemon be my main that is far ahead of the rest. What do you think would be some of the most fun pokemon to start with? Would prefer at least 1 stage of evolution though 2 would be best and a mega evolution would be nice but also not required.

Haven't played the game in probably 5 years but want to play a run where once I can get zygarde I use him as my main. What's the earliest you can get at least a 10% or 50% Zygarde and is it quicker in regular sun and moon or ultra sun and moon?