One possible plotline could be Yor dealing with her pregnancy while still trying to keep her assassin identity a secret from her family. She might struggle with the physical and emotional changes that come with pregnancy while also maintaining her cover.
There might not be a lot of publicly known 'pregnant Yor Forger fanfic' readily available. You could also try joining some Spy x Family fan communities. There, fans often share their own creations or know where to find unique fanfics. It's possible that someone in the community has written or knows of such a story.
A more complex plot could be about Yor dealing with the physical and emotional changes during pregnancy in a world full of danger. She might have to rely on her own strength more than ever, and her pregnancy could even be a target for her enemies, leading to a high - stakes story.
Avoid the typical 'pregnancy is all sunshine and roses' trope. Show the real challenges Yor might face, like morning sickness while on a mission or the fear of not being able to protect her unborn child.
Another theme could be the clash of different universes. Amazo is from the DC universe and Saitama is from One Punch Man. Fanfics might play around with how these two different universes' rules and powers interact when these two characters meet. Also, there could be themes related to respect and rivalry. Saitama is often very nonchalant about his power, while Amazo is a complex android with various abilities. How they view each other in the fanfic can create interesting storylines.
Saitama would win. He has shown incredible strength with just one punch. His power seems limitless, and in a fanfiction scenario, his simplicity and raw power would likely overpower Jiren's more complex abilities.
One possible plot twist could be that Jiren discovers a way to nullify Saitama's strength. Maybe he finds some sort of energy - draining technique that weakens Saitama over time. Another could be that Saitama holds back for some reason, like he wants to see the full extent of Jiren's power, and in doing so, he gets into a real struggle.
In a Saitama vs OC fanfiction, a plot twist could be that the OC has the power to make Saitama lose his strength. However, the OC doesn't want to use this power because they admire Saitama and want to test their own strength against him fairly. Another interesting twist could be that the OC is a part of a bigger plan by some mysterious organization. They use the fight against Saitama as a distraction while they carry out their real objective elsewhere. And as the fight progresses, Saitama realizes this and has to decide whether to continue the fight or go after the real threat.
Well, it really depends on how the OC (Original Character) is designed. If the OC has some really unique and powerful abilities that can counter Saitama's strength, like the ability to nullify physical attacks or something really out - of - the - box, then the OC might stand a chance. But Saitama is known for his one - punch knockout power. So, in most cases, Saitama would probably win due to his overwhelming strength that has defeated almost every foe he's faced so far.