It could be a disgruntled former criminal that Steve put away. This person might have just been released from prison and is seeking revenge.
Maybe the shot is just the start of a much larger conspiracy. Steve's team starts to uncover evidence that links the shooting to a powerful criminal organization, and they have to race against time to stop the bad guys while Steve is recovering. For example, they might find that the shooting was meant to be a distraction from a major heist that the organization is planning. As Steve lies in the hospital, his team is out in the field, following leads that keep getting more and more dangerous. They face numerous obstacles, including false leads planted by the criminals and threats to their own lives. Meanwhile, Steve, despite his injury, is trying to contribute from his hospital bed by using his knowledge and contacts.
Perhaps Nick Taylor is a character who has been wrongly accused of something by Steve McGarrett. In his anger and need for revenge, he decides to hurt Steve. He could be a misunderstood character who, if the truth were known, might not have such malicious intentions towards Steve.
You can try searching on popular fanfiction websites like Archive of Our Own (AO3). Just type in 'Steve McGarrett x reader tickle fanfiction' in the search bar, and it should show you relevant stories if there are any.
You can start by searching on fanfiction websites like FanFiction.net or Archive of Our Own. Just type in 'hurt Steve McGarrett' in the search bar, and you'll likely find a variety of fanfictions. Some might be about him getting physically hurt during a mission, while others could be more about emotional hurt, like betrayal from a friend or a difficult situation in his personal life.
Perhaps a mysterious stranger who has some unknown vendetta against the Heartland family. This person could have been lurking around the ranch for a while, waiting for the perfect opportunity to strike. Or it could be someone within the community who has a hidden agenda and sees Amy as an obstacle to their plans.
Well, it could be about a conflict between Nick Taylor and Steve McGarrett in a fictional scenario. Maybe Nick has some hidden motives that lead him to harm Steve, like a rivalry over something important in their world, perhaps a job or a relationship with a mutual acquaintance.
Another great one is 'The Hurt of Steve McGarrett'. It combines both physical and emotional pain for Steve. He's injured in a bomb blast and then has to deal with the after - effects, not just physically but also the emotional trauma of almost losing his life. The way the author portrays his struggle is really well - done.
In some fanfiction, Steve might get shot while protecting a civilian. This could lead to the civilian feeling guilty and trying to help the Five - 0 team in any way they can. The team, on the other hand, is focused on getting Steve back on his feet. There could be a lot of emotional exchanges between the civilian and the team members, and Steve might develop a special bond with the civilian after he recovers.
It could be a jealous rival detective who wants to get rid of Sherlock to gain more fame in the detective world.
It could be a dark wizard who has a vendetta against Fairy Tail. Maybe someone who Natsu defeated in the past and is now seeking revenge.