Sep 9, 2017, 02:22 PM
(This post was last modified: Sep 9, 2017, 05:39 PM by PerchPond.
Edit Reason: Updated with more Pokemon for more characters
)
I think Kobayashi-san Chi no Maid Dragon is pretty good. It's about a Medieval/European-style dragon that takes on a human forme to become the maid of an overworked office worker in a comical slice-of-life story. Dragonite would be perfect to represent the maid Tohru (or Tooru) 
So a shiny Dragonite nicknamed Tohru with HA in a Dusk Ball with Dragon Dance, Extreme speed, Fly and Earthquake would be sweet
The cute Kanna-chans character in its dragon-form looks alot like Reshiram, so that would be fitting
Shiny Reshiram nicknamed Kanna-chan in a Premier Ball, Modest nature, Draco Meteor, Blue Flare, Solar Beam and a filler move would be really cool
There are more dragons in the anime but their screen time is minimal and how they look is a bit unclear as they are mostly shown in recollections/flash-backs
EDIT:
Fafnir: A shiny Charizard nicknamed Fafnir (I guess it's 10 max characters for nicknames right? Otherwise "Fafnir-dono" would be cooler) in a Luxury ball, Modest/Timid nature with HP-Ice, Flame Charge, Flamethrower and Solar Beam
Elma: A shiny Dragalge in a Dive ball nicknamed Elma with Modest nature, Adaptability, Draco Meteor, Sludge Wave, HP-Fire and Toxic Spikes
Lucoa: Any Rayquaza named Lucoa really
I made quite the research for why the different Pokemon would fit each character, but stating it here would make the post reeeaaally long so
Hope it sounds good
Cheers

So a shiny Dragonite nicknamed Tohru with HA in a Dusk Ball with Dragon Dance, Extreme speed, Fly and Earthquake would be sweet

The cute Kanna-chans character in its dragon-form looks alot like Reshiram, so that would be fitting

Shiny Reshiram nicknamed Kanna-chan in a Premier Ball, Modest nature, Draco Meteor, Blue Flare, Solar Beam and a filler move would be really cool

There are more dragons in the anime but their screen time is minimal and how they look is a bit unclear as they are mostly shown in recollections/flash-backs
EDIT:
Fafnir: A shiny Charizard nicknamed Fafnir (I guess it's 10 max characters for nicknames right? Otherwise "Fafnir-dono" would be cooler) in a Luxury ball, Modest/Timid nature with HP-Ice, Flame Charge, Flamethrower and Solar Beam
Elma: A shiny Dragalge in a Dive ball nicknamed Elma with Modest nature, Adaptability, Draco Meteor, Sludge Wave, HP-Fire and Toxic Spikes
Lucoa: Any Rayquaza named Lucoa really

I made quite the research for why the different Pokemon would fit each character, but stating it here would make the post reeeaaally long so

Hope it sounds good

Cheers
"To believe in an ideal, is to be willing to betray it"
VGC, Friend Safari, Masuda
VGC, Friend Safari, Masuda