>Magikarp boat will take you to the Kanto resort where you can battle Kanto NPCs that show there randomly: Red, Blue, Leaf, Brock, Misty, Lt. Surge, Erika, Koga, Janine, Sabrina, Blaine, Giovanni, Lorelei, Koga, Agatha, Lance. Oak cant be battled but he will give you one Kanto starter
>Steelix submarine will take you to the Johto resort. There you can battle: Ethan, Lyra, Silver, Eusine, Falkner, Bugsy, Whitney, Morty, Chuck, Jasmine, Pryce, Clair, Will, Karen, Archer. Elm will give you one Johto starter
>Huntail ferry will take you to the Hoenn resort. NPCs: Brendan, May, Wally, Roxanne, Brawly, Wattson, Flannery, Norman, Winona, Tate, Liza, Juan, Wallace, Sidney, Phoebe, Glacia, Drake, Steven, Lisia, Aarune, Maxie and Archie. Birch will give you one Hoenn starter
>Whiscash ferry will take you to the Sinnoh resort. Lucas, Dawn, Barry, Roark, Gardenia, Fantina, Maylene, Wake, Byron, Candice, Volner, Aaron, Bertha, Flint, Lucian, Cynthia, Cyrus, Cheryl, Mira, Riley, Buck, Marley. Rowan gives you one Sinnoh starter
>Wailord liner will take you to the Unova resort which unlike others has two islands connected by a bridge. Black island NPCs: Hilbert, Hilda, Cheren, Chili, Cress, Cilan, Lenora, Burgh, Elesa, Clay, Shauntal, Grimsley, Alder, N
White island NPCs: Nate, Rosa, Bianca, Hugh, Roxie, Skyla, Brycen, Drayden, Marlon, Caitlin, Marshall, Iris, Zinzolin, Ghetsis. Juniper and her father stand on the bridge and they'll give you one Unova starter
>Kalos doesnt have a resort. Instead after collecting 50% Zygarde cells Sina and Dexio will take you with to the Southern Kalos island with few new towns, forrest and a cave where Zygarde 50% will appear. After capturing it NPCs will appear in Sunnete city in the same manner as with the resorts: Calem, Serena, Trevor, Tierno, Shauna, Viola, Grant, Korrina, Ramos, Clemont, Valerie, Olympia, Wulfrick, Malva, Wikstrom, Siebold, Drasna, Diantha, Lysandre, AZ and occasionally Sina and Dexio. Sycamore will give you one Kalos starter