Here's the Miraculous Team for the story, it will take into accounts Miraculous heroes and their new allies in the Multiverse.
Miraculous Team :
Ladybug/Marinette Dupain-Cheng
Cat Noir/Adrien Agreste
Rena Rouge/Alya Césaire
Carapace/Nino Lahiffe
Zoé Lee/Vesperia
Luka Kouffaine/Viperion
Max Kanté/Pegasus
Kim Le Chien/King Monkey
Kagami Tsurugi/Ryuko
Alix Kuppel/Bunnyx
Rose Lavillant/Pigella
Mylène Maprèle/Polymouse
Juleka Couffaine/Purple Tigress
Ivan Bruel/Minotaurox
Marc Anciel/Rooster Bold
Nathaniel Kurtzberg/Caprikid
Sabrina Raincomprix/Miss Hound
Nora Césaire/Anansi
Samuel "Sam" Noctis/Silver Claw (OC)
Jagged Stone/Kara-Hiss
Ondine/Mermin
Korra Mei-Ling (She's Kagami's cousin and a childhood friend of Sam alongside Zoe)/Illumina (OC) (Many thanks to FillyPhilosopher44 for requesting that OC)
Damian Noctis (He's a cousin of Nick, Sam's father and one of Sam's uncles)/Roosketeer (OC)
Aria Noctis (Damian's wife and one of Sam's aunts)/Woolita (OC)
Ian Noctis (OC)/Light Feather
Jeovanni (OC)/Nightwing
Betty (OC)/Lady Bat
Nico Anollo (OC)/Stinger
Pokemon :
Lucario/Lunar Dragon Yin
Rise of the Shield Hero :
Raphtalia/Banditita :
Naofumi/Sire Shield :
Zelda Series :
Midna/Princess Twilight :
Trolls :
Laguna Tidepool/Flare-Ence
Saint Seiya :
Shiryu/Lunar Dragon Yang
Hunter x Hunter :
Killua :
Persona 5 :
Ann Takamaki/Stone : Pantera
Ryuji Sakamoto/Stone : Captain Whiskers
Futaba Sakura : Sandbird
PJ Masks :
Connor : Night Cat
Amaya : Hootini
Greg : Lizzandro
My Hero Academia :
Ochako Uraraka : Graviteria
Fumikage Tokoyami : Night Crow
Kyoka Jiro : AeriaLyra
Momo Yaoyorozu : ExcelStar
El Tigre : The Adventures of Manny Riviera
Manny Riviera : El Tigre
Steven Universe :
Lapis Lazuli : SeaWing
Angry Beavers :
Norbert and Daggett Beaver : Alpha and Omega Beaver
Gravity Falls :
Mabel Pines : Goatina
Dipper Pines : Caprihorn
Spider-Man : Across the Spider-Verse
Miles Morales : Spider-Miles
Gwen Stacy : Spider-Gwen
GhostForce :
Andy Baker : Fury
Liv Baker : Myst
Mike Collins : Krush
DC Super Hero Girls (2019 Cartoon) :
Wonder Woman : Justice Woman
SuperGirl : Steel Girl
Green Lantern (Jessica Cruz) : Green Lantern
Zatanna : Magic Bunny
Bumblebee (DC Super Hero Girls 2019) : Beeline
Barbara Gordon (DC Super Hero Girls 2019) : Batgirl
The Loud House :
Lucy Loud : Fangula
American Dragon : Jake Long :
Jake Long : Scalegon
Teen Titnas :
Raven : Night Raven
Avatar : The Last Airbender :
Zuko : Royal Flame
JEM and the Holograms :
JEM : Rhythmria
The Wild Thornberrys :
Nigel Thornberry : Pachydermus
Danny Phantom :
Danny Fenton : Spectrum
Fairly Oddparents :
Timmy Turner (Alongside Cosmo and Wanda) : Star Nebula
The Ghost and Molly Mcgee :
Molly Mcgee (Alongside Scratch) : Ghostina
Fairy Tail :
Erza Scarlet : Titania
Lucy Heartfilia : Star Princess
Natsu Dragneel : Igneel