One great Sasusaku Sarada time travel fanfiction is 'Journey Through Time'. It has an interesting plot where Sarada travels back and gets to know her parents in their younger days. The story beautifully depicts the interactions and how Sarada's presence changes some events subtly.
One great sasusaku baby Sarada fanfiction could be 'Sarada's First Adventure'. It might focus on Sarada as a baby, with Sasuke and Sakura dealing with the joys and challenges of parenting. For example, Sasuke could be trying to teach baby Sarada some basic ninja skills in a really cute and clumsy way while Sakura is worried about her safety.
One common theme is family discovery. Since Sarada travels back in time, she gets to understand her parents better. Another theme is changing the past. Sometimes Sarada tries to make things better for her family in the past. For example, in some fanfics, she might try to prevent a small rift between Sasuke and Sakura from happening.
Another is 'Sarada's Family Love'. This fanfiction focuses on the small yet precious family moments. For instance, Sasuke coming home from a mission and baby Sarada reaching out to him with a big smile. Sakura looking at them with so much love in her eyes. It shows how their family functions and the love that binds them.
Sarada might be initially shocked and sad. She loves both her parents, and the divorce would be a huge blow to her. She could become withdrawn for a while, not wanting to talk to her friends about it.
Anti Sasusaku fanfic focuses on going against the Sasusaku relationship. So, while regular Sasusaku fanfic might show the growth and love between Sasuke and Sakura, anti ones would show the opposite. For example, they could show Sasuke constantly rejecting Sakura or having a negative view of her.
Itachi would probably be very calm and composed. He might see Sarada as a symbol of the new generation of ninjas in the village. He could be gentle with her, perhaps sensing her potential and her desire to grow as a ninja.
There's also a chance she meets her own ancestors. This would be a very emotional and educational encounter for her. She could learn about her family's past in a more direct way and maybe discover some long - lost family secrets.