You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of Arrow fanfics involving Laurel and Oliver. Many talented writers post their works there, and you can search specifically for stories with Laurel and Oliver in the tags.
A third common theme is teamwork. Since they are both involved in fighting crime in the Arrow series, fanfics may depict how they work together as a team. This could involve strategizing against their enemies, training together, or relying on each other's skills to overcome difficult situations in the fictional Starling City.
One common theme is redemption. Given Laurel's complex character arc in the show, many fanfics explore her journey towards redemption, often with Oliver by her side. Another theme is love in the face of danger. Since they are in a world full of crime and villains, their love has to withstand a lot of threats.
Thea would be excited to be an aunt. She would likely start shopping for baby clothes right away and be there for Laurel during her pregnancy, offering girl - to - girl advice. And Roy might be a bit more reserved in his reaction, but still happy for his friends. He would probably offer to help with security around their place to keep them safe during this vulnerable time.
Another storyline might involve Laurel getting pregnant and Oliver being overprotective. He tries to keep her out of danger, but Laurel is determined to continue her work as a hero. This could lead to some tension between them as they both have strong opinions on how to handle the situation while also dealing with the reactions of their friends and family.
Thea Queen would be an interesting character to include. As Oliver's sister, she could have a unique perspective on their marriage and might be involved in family - related subplots. Also, Malcolm Merlyn could be a great antagonist in the fanfiction. His complex relationship with Oliver and his own motives could add a lot of drama to the story of Oliver and Laurel's married life.
One possible plot could be Oliver and Laurel navigating the challenges of being superheroes while married. They might have to balance their vigilante duties with their relationship, like dealing with secrets and the danger it poses to their family. Another could be them starting a family and how they raise their children in a world full of villains and chaos.
One great Arrow Oliver Laurel fanfic is 'Green Arrow's Heart'. It delves deep into the relationship between Oliver and Laurel, exploring their past, present, and possible future. The author does a wonderful job of portraying their complex emotions and the challenges they face in the Arrow - verse.
You can find laurel and oliver fanfiction on websites like FanFiction.net. It has a large collection of stories dedicated to different fandoms, including Arrow where Laurel and Oliver are from.
Maybe Laurel hates Felicity in the fanfic because they have different personalities. Felicity is often seen as very tech - savvy and bubbly, while Laurel might be more serious and traditional. This contrast could lead to some friction between them in the fan - created story.