Julian Walker : Reincarnated form our world to a planet similar but containing pokemon, has a system like normal isekai protagonist, Rich second generation with a powerful family and background. Plans to make full use of his identity and status 

powers : Aura , Psychic, Ash's physique

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1. Metagross✨ [Shiny]

2. Lucario

3. Meltan(currently) < Melmetal

4. Dragonite

5. Slowking

6. Aron < Lairon < Aggron 

7. Steelix

8.Growlithe

some of these you will see in the coming chapters not now, i can even tell you some more which I remember reading about..... so stop reading here if you don't want spoilers

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Shiny Gengar, Celebi, Moltres, Togepi, Jirachi, , Magearna, Duraludon, cosmog(not sure of this one)

there are more i think but for now yeah