Atlantis of course

You get all your forces to breathe underwater due to Poison Ivys plants, and then head towards Atlantis. The guards are ready for you. And it's a bloody battle. After deaths on both sides, you manage to get through the walls and into the city itself. You get every citizen you see under your control, and then send forth Superman and Supergirl to the palace, bringing you along. You find both Mera and Aquaman hiding in the palace with all the teen Titans, including Raven, Robin, Beast Boy, Starfire, Cyborg, and Kid Flash. Mera pushes all the water back, putting everyone into a even battle platform. Using a device given to you by Batman, you upload a virus into cyborg, knocking him out. Beast boy charges at you while Supergirl knocks out Robin in one punch and Superman places a pod on kid flash. You punch Beast boy in the head with your superstrength, rendering him unconscious. You throw a pod at Raven hitting her straight on her chest, converting her. Aquaman throws his trident at you, and you catch it just for it to reappear in his hand. He throws it again but this time place a pod onto the trident before it disappears. He touches it and just like that he's yours. Mera drops the water and tries to flee but Aquaman grabs her and places a pod onto her, officially making Atlantis yours. You make the city your new home, and get ready to look for a way to locate Paradise island. You decide to have some fun though with the remaining teen titans, after learning they're all properly grown.