The teams from the finals of the Pokemon World Championships are available as QR codes on the Global Link. However, below are pastes of the teams extracted from the Rental Teams (They should be correct)
Junior:
Champion Wonn Lee: Terrakion / Gengar / Whimsicott / Tapu Bulu / Kommo-o / Snorlax
https://pokepast.es/8bb9fbdc3cb96fee
Runner Up Sota Tamemasa: Oranguru / Dusclops / Pelipper / Mawile / Mimikyu / Snorlax
https://pokepast.es/09fc22f524d94c1f
Senior:
Champion James Evans: Incineroar / Tapu Koko / Porygon2 / Gardevoir / Araquanid / Landorus-T
https://pokepast.es/3b66c2c0fdef8341
Runner Up Bram de Jong: Blaziken / Bisharp / Tapu Bulu / Amoonguss / Snorlax / Mimikyu
https://pokepast.es/560fd8e8a0c7dd21
Masters:
Champion Paul Ruiz: Tapu Koko / Salamence / Snorlax / Gastrodon / Incineroar / Kartana
https://pokepast.es/53ee5e3b7f662ca8
Runner Up Emilio Forbes: Tapu Bulu / Incineroar / Politoed / Gengar / Landorus-T / Latias
https://pokepast.es/1a310caafc8ea73a
(And yes, I know I made a mistake in the Pokepastes XD. It should be 2018 World Championship not 2019 World Championship)
Junior:
Champion Wonn Lee: Terrakion / Gengar / Whimsicott / Tapu Bulu / Kommo-o / Snorlax
https://pokepast.es/8bb9fbdc3cb96fee
Runner Up Sota Tamemasa: Oranguru / Dusclops / Pelipper / Mawile / Mimikyu / Snorlax
https://pokepast.es/09fc22f524d94c1f
Senior:
Champion James Evans: Incineroar / Tapu Koko / Porygon2 / Gardevoir / Araquanid / Landorus-T
https://pokepast.es/3b66c2c0fdef8341
Runner Up Bram de Jong: Blaziken / Bisharp / Tapu Bulu / Amoonguss / Snorlax / Mimikyu
https://pokepast.es/560fd8e8a0c7dd21
Masters:
Champion Paul Ruiz: Tapu Koko / Salamence / Snorlax / Gastrodon / Incineroar / Kartana
https://pokepast.es/53ee5e3b7f662ca8
Runner Up Emilio Forbes: Tapu Bulu / Incineroar / Politoed / Gengar / Landorus-T / Latias
https://pokepast.es/1a310caafc8ea73a
(And yes, I know I made a mistake in the Pokepastes XD. It should be 2018 World Championship not 2019 World Championship)