You can try some popular fan fiction websites like Archive of Our Own (AO3). It has a large collection of fan fictions about various topics, including Oliver and Felicity. Just use the search function on the site and type in 'Oliver and Felicity' to find relevant stories.
One common plot idea is exploring their life after the events of the show. For example, how they handle raising a family while still being involved in the vigilante world. Another idea could be alternate universes where they meet under different circumstances, like Felicity being a superhero herself and Oliver being a tech genius who helps her.
Diggle would be a great addition. He's Oliver's friend and partner, and his presence could add some interesting dynamics to their married life. He could offer advice or be there to help out in times of trouble.
Most Oliver and Felicity fanfiction focuses on their relationship. It often explores their love, trust, and how they support each other through difficult times. For example, some stories might center around how they deal with Oliver's past traumas as a vigilante.
Perhaps in a fanfiction, Oliver and Felicity are transported back in time. They have to adapt to the old - fashioned ways of that era while still maintaining their modern - day love for each other. They might face some difficulties, but also find new ways to express their love and support.
Oliver would likely use his skills from being a vigilante to protect his family. He might set up high - security measures at home. Felicity could use her tech - savvy to monitor the baby while they are out on patrol. They would also have to rely on their friends and allies to help out when they are dealing with threats in the city.
One challenge could be safety. Oliver's life is full of danger from his vigilantism. Enemies might target Felicity and the unborn child. Another challenge could be adjusting to their new roles. Felicity might have to cut back on her work, and Oliver would need to be more present at home.
Oliver and Felicity's story is one filled with action, love, and growth. They met in the context of Oliver's vigilante activities. Felicity was initially his tech - support, helping him with his missions from behind the scenes. As time passed, they developed deep feelings for each other. They faced numerous challenges together, from fighting against various villains in Star City to dealing with personal issues. Their relationship evolved from colleagues to friends and finally to lovers. They supported each other through tough times, like when Oliver was dealing with his past traumas and Felicity was facing threats related to her work. Their story is a long and eventful journey in the world of superheroes and their personal lives.
In certain fanfictions, Felicity and Oliver's first kiss is set against a backdrop of a beautiful, moonlit night. They've been having a deep conversation about their fears and hopes. As they look into each other's eyes, the chemistry between them becomes irresistible. Oliver slowly moves closer, and Felicity meets him halfway. Their first kiss is soft and sweet, a moment that both of them have secretly been longing for, and it marks the start of a new chapter in their relationship.