Another plot could involve them preparing for the arrival of the baby. They could be seen shopping for baby supplies in different alien markets. Quill would be clueless about most things, while Gamora has a more practical approach, leading to some comical situations.
Their relationship would likely deepen. The impending arrival of a baby would bring them closer together on an emotional level. They'd have to communicate more about their hopes and fears for their family. For instance, they might have long talks about what kind of values they want to instill in their child.
Some official fan communities on social media platforms like Reddit can be great sources too. For example, the subreddit dedicated to Guardians of the Galaxy might have users sharing and discussing their favorite Peter Quill and Gamora fanfictions. You can interact with other fans and get recommendations directly from them.
One common setting is on a spaceship. They could be in a quiet corner of the ship, away from the rest of the crew. Maybe they've just survived a dangerous battle, and the adrenaline rush leads to the kiss. Another setting could be on a desolate planet. They're alone, and the isolation makes them confront their feelings for each other, resulting in the kiss.
You can try websites like Archive of Our Own (AO3). It has a large collection of fanfics, and you're likely to find many 'gamora x quill' ones there. Fanfiction.net is also a good option.
You can try searching on popular fanfiction websites such as Archive of Our Own (AO3). It has a large collection of various fanfictions, and there's a good chance you'll find Nubula and Gamora love fanfiction there.