Characterization is key. The way the oc and Margaery are portrayed should be believable. For example, Margaery's charm and political acumen should be well - presented. Also, the relationship between them, whether it's friendship, rivalry or something else, needs to be well - developed.
There's also 'Margaery's Unseen Ally', which is a fanfic that delves deep into the relationships Margaery has within the court. The oc in this story adds a new dimension to the existing relationships and power dynamics. It has some really well - written dialogue that brings the whole setting to life.
There's also 'Margaery and the Mysterious OC'. This fanfic focuses on a mysterious original character who has some sort of premonition ability. Their interactions with Margaery are full of tension and mystery. It's a really engaging read as it weaves in elements of the unknown into the story. The plot twists keep you on your toes.
First, research Margaery's character thoroughly. Know her motives, her relationships, and her place in the Game of Thrones universe. Then, create your original character. Give them a unique backstory, personality, and goals. For example, if your OC is a spy, think about why they became a spy and how they will interact with Margaery. Next, plan your plot. Maybe your OC is trying to help Margaery secure the throne in a different way. Write with a clear narrative arc in mind, starting with an introduction, building up the story, and having a satisfying conclusion.
There are fanfics that explore Margaery's rise to power. They might detail how she uses her charm and intelligence to gain influence in the court, without any sexual content involved. For example, her interactions with the small council or her attempts to win the favor of the common people.
One common theme is political alliance. Given their positions in the 'Game of Thrones' world, a lot of fanfics explore how their union could change the power dynamics in Westeros. For example, they could form an alliance against common enemies like the Lannisters.
Love against all odds is also a frequent theme. Given their different family loyalties and the complex political situations, their love (if it develops) is often portrayed as something that has to overcome many obstacles. For example, in some fanfics, they have to deal with family members who oppose their relationship.
There's also a fanfic called 'Aegon and Margaery: A New Alliance'. In this one, they team up to face common enemies. It has some really interesting plot twists and the way it portrays their individual motives and how they come together is quite engaging. It shows how their different backgrounds in the Targaryen and Tyrell houses can either clash or complement each other.
One common theme is political intrigue. Given Margaery's role in the political world, a male OC often gets involved in the power plays and schemes alongside her. Another theme is love against all odds, as their different statuses or the complex political situation can create obstacles for their relationship.
I'm not sure specifically which 'Margaery Tyrell lemon fanfiction' is good. Fanfiction quality can vary greatly. You might try searching on well - known fanfiction websites and look at the reviews and ratings to find some that are popular and well - written.