on Jane Friedman site:

In my work as a book coach, I’ve found that writers of fiction generally fall into three camps: those who start with character, those who start with plot or story concept, and those who start with theme. In part two of this three-part series (here is part one), I’ll address the natural strengths of those who tend to start with plot, along with some challenges these types of writers tend to face.

Plot people, generally speaking, are idea people. A new story may arrive in the form of a concept they’re fascinated by—say, the idea that aliens might be symbiotic beings, in much the same way that lichens are—or an intriguing question: What if two twins, dissatisfied with their lives and marriages, decided to pass as each other for a year?

Or they might be interested in writing a type of story. Say, a thriller that revolves around the trafficking of endangered species, or a story that combines elements of space opera and noir.

Either way, when that big idea arrives, it begins to take hold in the writer’s imagination, and soon begins to sprout into a plot, often one with fascinating twists and turns: