A handsome manhwa male lead is usually defined by his physical attractiveness, which includes well-defined facial features and a fit body. Additionally, he often demonstrates leadership skills, a sense of justice, and a capacity to protect those he cares about.
You typically can't kill the male lead in a manhwa. The story is built around them, and their presence drives the plot forward. Any attempt to do so would likely violate the established storyline and could lead to an unsatisfying or chaotic reading experience.
One common theme could be the power dynamic. The possessive alpha often shows extreme protectiveness which can border on controlling behavior towards the omega. Another theme might be the omega's struggle for independence within this relationship. For example, they may try to assert themselves despite the alpha's overbearing nature.
I'd recommend 'Twisted Love'. The yandere male lead's actions keep you on the edge of your seat. The plot has lots of twists and turns that make it stand out. The way the relationship develops is quite unique.
Often, when the second male lead powers up, it adds a twist to the plot. It could lead to power struggles, new conflicts, or maybe even a shift in the readers' sympathies towards him.
Introduce positive role models in the story. Other alpha - omega couples who have healthy relationships can be shown. The possessive alpha can then learn from these good examples. This can also provide hope for the abused omega that a better relationship is possible.
Well, for male readers, 'Tower of God' and 'Noblesse' are often highly recommended. They have engaging plots and diverse characters. 'Tower of God' has a unique world-building, while 'Noblesse' combines action with mystery.