One common theme is redemption. Since Eddie Brock has his own complex past, the OC often plays a role in his journey towards redemption or self - discovery.
One great Eddie Brock OC fanfiction is 'Eddie and the New Ally' which explores an original character's journey alongside Eddie Brock. It has some really interesting character dynamics.
They would become even closer. The shared responsibility of having a baby would strengthen their bond. Eddie would be more protective of Venom, and Venom would be more gentle towards Eddie, knowing they are in this together for the sake of their future child.
One common theme is the struggle for control. Eddie has to constantly battle with the Venom symbiote to be in charge. Another theme is redemption. Eddie often starts off as a bit of an outcast or anti - hero and through his experiences with Venom, he tries to find a way to be a better person. And the theme of the symbiotic relationship itself is also very common, exploring how Eddie and Venom depend on each other.
Generally, Eddie Brock survives in the comics. However, there have been some complex and alternate storylines where his fate is less certain or temporarily in jeopardy.
One common theme is the struggle between good and evil. Since Eddie Brock has the Venom symbiote which has a dark side, and Peter Parker is the friendly neighborhood Spider - Man, their interactions often revolve around this dichotomy.
Well, Eddie Brock could initially be seen as a threat. His symbiotic nature might make the Avengers cautious. Maybe Spider - Man, if he's part of the Avengers in that fanfic, would have a special reaction since he has his own history with Venom (Eddie Brock).