One popular Michaela and Zeke baby fanfiction might be about their journey in preparing for the baby. For example, it could detail how they decorate the nursery, with Michaela having very specific ideas about the color scheme and Zeke going along with it. They might face some challenges like finding the perfect crib or dealing with unexpected family reactions to the news of the baby.
You can try searching on popular fanfiction websites like Archive of Our Own. There are usually a large number of fan - created stories there. Just use the search bar and type in 'Michaela and Zeke baby' and it should bring up relevant stories.