Character development is a big part. The characters have to change their initial negative views of each other. In a good 'enemies to lovers' BL novel, you'll see how they gradually start to understand and care for one another. For instance, they might discover shared traumas or interests that bridge the gap between them.
You could also check out 'Given'. Ritsuka and Mafuyu have some initial friction. Ritsuka is a bit cold towards Mafuyu at the start. But through their shared love for music, they grow closer and develop a deep, loving relationship.
There are several dedicated BL manga websites. For example, Mangago and Kissmanga have a decent selection. But be careful as some of these sites might not be legal or safe.
One important method is through dialogue. As they start to talk more, they begin to understand each other's motives and personalities. In some novels, a gradual revelation of the characters' true selves plays a big role. For instance, the 'enemy' might show a vulnerable side that the other character didn't expect. This can break down the barriers between them. Also, the setting can contribute. If they are in a new and unfamiliar place together, it can force them to depend on each other and change their relationship dynamic.
There were many novels in which the male and female protagonists were in love. The more classic ones were " Why is the Sheng Xiao silent?"," A slight smile is very beautiful?"," The concubine's daughter is poisonous?"," Hua Qian Gu ", and so on. These novels all had a certain audience. The plot was complicated and the characters were vivid, which could bring a lot of emotional resonance to the readers.
One great example is 'Attachments' by Rainbow Rowell. It has an online aspect where the main characters start as sort of enemies in a work - related online environment. Lincoln, the IT guy, has to monitor the employees' emails for inappropriate use. Beth and Jennifer are two employees who often send emails that Lincoln reads. At first, he seems like an enemy invading their privacy, but as he gets to know them through their emails, he falls in love with Beth. It's a really sweet story that shows how an online connection can transform from something negative to a romantic relationship.
One great 'enemies to lovers' fantasy novel is 'A Court of Thorns and Roses' by Sarah J. Maas. It has a great build - up of the relationship between Feyre and Rhysand. Another is 'The Cruel Prince' by Holly Black. The dynamic between Jude and Cardan is full of tension and eventual love. Also, 'Shadow and Bone' by Leigh Bardugo has some elements of this trope as well.
Some excellent 'enemies to lovers' fictions are 'Cruel Prince' by Holly Black. Jude and Cardan are enemies in the faerie world. Jude is a mortal living among the faeries and Cardan is a cruel prince who bullies her. But over time, their relationship changes into something more passionate. 'The Cruel Prince' shows how power dynamics and initial hatred can transform into love. Also, in 'The Vampire Diaries' book series (although it has a TV adaptation too), Elena and Damon start off as enemies. Damon is a vampire who seems menacing to Elena at first, but as the story unfolds, they develop a deep and complex relationship that has elements of love despite their initial enmity.