I'm not entirely sure specifically what a 'gaasaku lemon fanfic' is about as it could vary greatly. 'Gaasaku' might refer to a pairing in a particular fandom, and 'lemon' in fanfic terms often implies some sort of romantic or spicy content. But without more context, it's hard to say exactly.
One popular gaasaku fanfic might be 'A New Beginning' which explores Gaara and Sakura's relationship in a post - war Konoha setting. It shows how they bond over rebuilding the village and gradually develop deeper feelings for each other.
You might try looking on some of the major fanfic websites like Archive of Our Own (AO3) or Fanfiction.net. Just search for 'gaasaku lemon' on their search bars.
You can try fanfiction.net. It has a large collection of fanfics including many gaasaku ones. Just use the search bar and type in 'gaasaku' and you'll get a list of relevant stories.
The two central characters are Gaara and Sakura. Gaara, who was once an outcast in his village, now has a chance to show his worth in the Chunin Exams. His ability to control sand is a key factor. Sakura, a member of Team 7, is eager to step out of Naruto and Sasuke's shadows. In this fanfiction set during the Chunin Exams, their individual stories, their development as ninja, and their relationship with each other form the core of the narrative.
One popular 'gaasaku vampire fanfiction' might be 'The Vampire's Promise'. It often features unique plot twists and character developments that fans of the genre enjoy.
One common theme is self - discovery. When Gaara and Sakura travel through time, they often face situations that make them re - evaluate who they are. For example, in some stories, they see how their actions in the past could have changed the present.
Archive of Our Own (AO3) is a great place to start. It has a large collection of fanfiction from various fandoms, and there's a good chance you'll find 'gaasaku' pregnant fanfiction there. Just use the search function and type in the relevant keywords.
One way to find popular 'gaasaku' pregnant fanfiction is to check fan communities or forums dedicated to the source material that 'gaasaku' is from. Fans often discuss and recommend their favorite stories there. It could be that the stories focus on the challenges and joys of the pregnancy within the context of the 'gaasaku' relationship, but without further research, it's hard to name specific ones.
Another way is to join fanfiction communities or forums related to Naruto (since Gaara and Sakura are from Naruto) and ask for recommendations. People there are usually quite helpful and can point you to some great 'gaasaku vampire fanfiction' pieces. They might even share some hidden gems that you won't find easily through regular searches.