TBATE | story ideas

any ideas

Before starting I want to clarify two things

1) I don't have any kind of experience creating stories so I accept any recommendations, complaints, suggestions and reviews on how to improve

2) English is not my main language (I will basically be using google translate)

Having said that let's start with the ideas

-The first idea is one where Agrona, upon her discovery about the legacy, decides to bring Gray and Nico into this world at the same time where a mysterious force interferes with their reincarnation, causing both to be born as the Leywin twins.

How does Nico react to discovering that his brother is the person he hates the most? How does it affect Arthur?

I still don't have a title for this story (I accept recommendations), nor a name for nico

-The second story is based on what would have happened if Gray accepted Cecilia's feelings, how will they face the adversities of coming together? How would Nico accept that his best friend is with the person he loves? In this story, the director from the orphanage (I don't remember its name) will not die

Like the previous one I have no idea for the title

-The third story is located after the fall of Agrona and Kezess, the world is destroyed and although there is a group of survivors, the future seems dark so Gre decides to travel to the past (yes, I know, it is a travel story in time), but when he remembers his parents' reaction when he discovered his reincarnation, he has doubts about returning as Arthur, for once he decides to be selfish and return to his family but not as Arthur but using his control over the ether he makes that Alice gives birth to a pair of twins using the eldest as her vessel

Like the previous ones, I have no ideas for the name (I know, I have little imagination)

Which story do you think I should write?