There are many possibilities. Maybe Ash discovers that Drati's injury is part of a larger conspiracy. Or, it could bring Ash and Drati closer together as they go through this ordeal.
Maybe Ash decides to help Riolu recover and they form a special bond on his journey.
Next, Sirius might immediately send for help from other members of the Order of the Phoenix. He knows that Hermione's knowledge and skills are crucial for the fight against the Dark Arts, so he wants to ensure she gets the best care.
In some fanfictions, Harry might take the injured owl to Hagrid. Hagrid, being an expert with magical creatures, would then tend to the owl's wounds. He might use various potions and spells to heal it. For example, he could use a healing charm that he learned from his time at Hogwarts or some special herbs from his garden.
Well, it could lead to all sorts of adventures. Maybe Eevee's unique powers come into play and help Ash in battles.
It could lead to an exciting adventure where Ash takes care of Dratini and helps it recover.
He might explore the spaceship out of curiosity. Naruto is always eager to learn new things, so he'd be all over the controls and strange gadgets inside. He could accidentally activate something that sends out a signal, attracting either help or danger.
The baby might have some special powers that start to show up. Yami Yugi has to figure out how to control and help the baby develop these powers in a positive way. For example, if the baby can create portals, Yami Yugi will need to teach it when and where it's appropriate to use such a power.
Well, in many such fanfictions, Naruto might take the fox kit under his wing. He could start by trying to find out if the kit is injured or lost. Maybe he'd use his own experiences of being an outcast to empathize with the little fox. He might try to protect it from any harm in the village, as the villagers often misunderstand things related to foxes due to the Nine - Tailed Fox incident. And who knows, the fox kit could turn out to have some special powers or a connection to Naruto's own chakra.
Well, it could lead to all sorts of adventures. Maybe the eggs hatch into rare or powerful Pokemon that help Ash on his journey.
Well, Naruto would probably immediately try to free her. He's the kind of person who can't stand seeing someone in distress. He might use his ninja skills to break the chains quietly if he's worried about enemies nearby. Then he'd likely ask her who she is and how she ended up there.