A common theme is redemption. For example, Sakura might go back in time to redeem Gaara's past traumas. Another theme is changing fate. Since they are time traveling, they often try to change the bad things that happened in the past.
A frequent theme is the exploration of their unique abilities. Sakura's medical ninjutsu and combat skills combined with Gaara's sand powers can create interesting scenarios. For example, they might work together to develop a new jutsu that combines their powers. Also, love against all odds is a common theme, as their different villages and roles in their respective communities might pose challenges to their relationship.
One common theme is redemption. They might go back in time to correct past mistakes, either their own or those of others in the ninja world. For example, they could try to prevent a tragic event that led to someone's downfall.
One common theme could be the exploration of their relationship in different scenarios. Maybe how they overcome challenges together.
One common theme is the forbidden love. Since Gaara is a vampire and Sakura is usually portrayed as a normal human (or with some special abilities in the Naruto context), their relationship goes against the norms of both their worlds. Another theme is power dynamics. Gaara, as a vampire, often has more physical and sometimes mental power, and how Sakura navigates this power difference in their relationship is explored.
The theme of jealousy often appears. Gaara may become jealous if he sees Sakura interacting with other male characters, especially those who are also powerful or have a history with her. This jealousy can manifest in different ways, from silent brooding to more aggressive displays of his possessive nature.
One common theme is friendship. Gaara and Sakura, who come from different villages, form a bond through the act of saving. It shows that even characters with different backgrounds can be friends.
One common theme is unrequited love. Often, either Sakura or Gaara may think the other doesn't have feelings for them while they are experiencing jealousy. Another theme is miscommunication. Because of their jealousy, they may not communicate their true feelings, leading to more misunderstandings. For example, Gaara might see Sakura with someone else and assume she's not interested in him, without asking her directly.
One common theme is the healing aspect. Gaara has a troubled past, and Sakura, with her kind heart, often plays a role in helping him heal further and open up to love. Another is the idea of overcoming differences. Their different upbringings and abilities in the Naruto universe are something that is often explored in these fanfictions as they come together in love.
A frequent theme is the idea of healing and growth. Gaara has a troubled past, and Sakura is a healer in the Naruto world. Fanfictions may depict Sakura helping Gaara deal with his inner demons while they date, and through this process, both of them grow as individuals and as a couple. Also, there could be themes of loyalty and trust as they navigate their relationship in a world full of danger and political intrigue.
One common theme is the idea of building a family against all odds. Given that Sakura and Gaara come from different backgrounds in the Naruto universe, fanfictions often explore how they overcome their differences to form a family. For example, in many stories, they have to deal with the prejudice of their respective villages.