In a crossover with 'Sailor Moon', Sailor Mars would be a great character for kagome to interact with. They both have powers related to spiritual energy and fire. They could learn from each other's combat styles and magical abilities, and perhaps team up to fight a common enemy that threatens both their worlds.
Another plot could involve kagome in the 'Fullmetal Alchemist' universe. Since she has experience with magic and the supernatural, she might be able to assist the Elric brothers in their search for the Philosopher's Stone. She could use her knowledge of different realms to find clues that they missed.
The 'kagome kagome horror story' is often associated with Japanese horror. It typically involves elements like a spooky, ritual - like chant. In the story, there are often dark and mysterious events that unfold. For example, it might involve a spirit being trapped or some sort of cursed situation. However, different versions can vary greatly.
Kagome would most likely be very angry at first. She's used to being in control of her own life and suddenly being kidnapped by Sesshomaru would be a huge violation. She might try to use her spiritual powers to fight back or at least escape.
Kagome could encounter other skilled fighters from different realms. They might be human - like her - but with extraordinary abilities. Or she could run into some strange and magical creatures that are only found in the area where the Dark Tournament is held. There could also be some characters who are there for their own secret reasons and Kagome gets caught up in their plots.
At first, Kagome is likely to be angry. She's a strong - willed character, so being kidnapped goes against her nature. She would probably struggle and try to escape immediately, yelling at Koga about how wrong his actions are.
Kagome would probably be shocked at first. Then she would start yelling at Inuyasha, demanding to know why he's doing this. She's not the type to just sit there and take it.
Online horror forums are also a good place. There are many enthusiasts who discuss and share different versions of horror stories, including the 'kagome kagome horror story'. Just be careful as some content might be disturbing. You could also search in libraries for books on Japanese folklore and horror, as it may have its roots in such traditional stories.