A more dramatic title could be 'Alejandro Cruz's Encounter with the OC: A Lethal Weapon Tale of Destiny'. It makes the story seem like their meeting was fated within the world of Lethal Weapon fanfiction.
Well, they could team up to solve a mystery. Maybe there's a crime wave in the city that the official Lethal Weapon characters can't handle alone, so Alejandro Cruz and the OC join forces. They might have different skills and personalities that complement each other, like the OC being really good at hacking and Alejandro Cruz having excellent combat skills.
To develop Alex Cruz's character in this fanfiction, you could focus on his backstory. Maybe explore his family life, his training, and how those things have shaped him. For example, if he had a tough upbringing, it could explain his sometimes brash behavior. As for the OC, give them unique traits. It could be something like they have a photographic memory which helps in solving cases.
Perhaps the OC has a secret past that is somehow connected to one of Cruz's old cases. When this connection is revealed, it creates a lot of tension between them. However, through communication and understanding, they are able to overcome this hurdle and their relationship evolves into something more. For example, the OC might have been involved in a crime as a victim and Cruz initially misjudges the situation.
Yes, there might be. Fanfics are often created by fans in various online communities. You can try searching on fanfic platforms like Archive of Our Own or Fanfiction.net.
You can try Archive of Our Own. It has a large collection of fanfics from various fandoms including 'Lethal Weapon'. Just use the search function and type in 'Alex Cruz Lethal Weapon Fanfic'.
One possible title could be 'Scarecrow and My OC: An Unlikely Bond'.
A simple yet effective title could be 'Percy x OC: A Fan - Created Story'. It clearly states what the fanfiction is about, that it involves Percy and an original character, and that it's a story created by a fan.
Some possible titles could be 'Mitsukuni and My OC: An Unlikely Bond', 'The Encounter of Mitsukuni and My OC', 'Mitsukuni's Adventure with My OC'.
One possible title could be 'Crowley and the Mysterious OC: An Unlikely Bond'.
How about 'The Encounter of Sephiroth and His Male OC Counterpart: A Fanfiction'. This title gives an idea that the story might be about how Sephiroth meets the male OC and what kind of relationship or interactions they will have. It also clearly states that it is a fanfiction which can attract the right audience who are interested in this particular pairing.