Well, Homelander is killed in the comics when a series of strategic and unexpected events unfold. A combination of his enemies' clever planning and his own vulnerabilities lead to his demise.
To write a good 'Homelander Fanfiction', first, understand his character. He's complex, with a huge ego and a lot of power. Start with a unique concept, like putting him in a situation where his powers are useless. Then, develop his character further. Maybe show a side of him that we haven't seen much in the show, like his fear of being alone. Use vivid descriptions to bring the story to life.
In the comics, Homelander meets his end in a rather complex and dramatic way. It involves a series of battles and power struggles among various characters.
Well, Homelander's death in the comics was the result of a complex series of events and conflicts with various adversaries. It wasn't a straightforward affair.