One way is to wish for knowledge. Knowing all the secrets of the vampires, witches, and werewolves would give you a huge advantage. You could then use this knowledge to your benefit.
It could be really exciting. You might wish to be a powerful vampire right from the start. Maybe have the ability to compel anyone easily. And you could use your wishes to change the fates of some characters, like saving those who die in the original story.
One way to survive would be to make powerful allies. For example, befriending a powerful vampire like Klaus could offer protection. Since he's one of the most powerful vampires in the Vampire Diaries universe, his protection would be valuable.
Well, his story could be one of mystery and power. He might find himself in the middle of the vampire - werewolf - witch drama. Maybe he has a special power that attracts the attention of the Originals. For example, he could have the ability to control minds on a level that even the vampires envy.
Well, often the reborn character brings new knowledge or a different perspective. If they come from a different time or place, they might introduce new ideas that change how the other characters in the Vampire Diaries world view things. They could also disrupt existing romances. Maybe they fall in love with a character who was already in a relationship, causing all sorts of chaos. And they might also be the key to solving some long - standing mysteries in the story that the original characters hadn't been able to figure out.
One way to survive is to make allies. Find a powerful vampire or witch who can protect you. For example, aligning with the Salvatore brothers could offer some safety. Another key is to learn about the rules of the supernatural world quickly. Don't go against the powerful vampire covens without a good reason.
It can be portrayed as a dangerous weapon. If someone uses chloroform on Damon, it could show his vulnerability, which is a contrast to his usually tough and powerful vampire self. For instance, if a new vampire hunter discovers Damon's weakness to chloroform and uses it to capture him.
To search for Vampire Diaries fanfiction, begin with the big fanfiction hubs. AO3 is great because of its tagging system. When you search for 'Vampire Diaries', it'll show you stories tagged with relevant characters, pairings, and themes. FanFiction.net is another classic choice. You can also try Tumblr. There are many Vampire Diaries fan blogs that reblog or write their own fanfiction. Just search for relevant tags like '#VampireDiariesFanfic' and you'll find some interesting reads.
If I were reborn into the Vampire Diaries fanfiction, I'd probably be a bit star - struck when interacting with Damon at first. I mean, he's so charming yet dangerous. I might start off being a bit cautious around him, but then as I get to know his softer side, I'd become friends and try to steer him away from his more reckless actions.
When writing a male self - insert 'Vampire Diaries' fanfiction, think about the plot. You could start with the character arriving in Mystic Falls. He could be a transfer student or someone who has come to the town for a specific reason. As you write, keep in mind the tone of the original show. It has elements of drama, romance, and horror. So, your story should also have a balance of these. For example, if your character falls in love with one of the main characters, show the difficulties they face due to the supernatural elements around them.
First, you need to find allies. The Salvatore brothers are a good start. They have a sense of honor and can protect you from other vampires. Second, stay away from the bad vampires like Klaus when he's on a rampage. Third, learn about the magic in the world, like what Bonnie can do, so you can use it to your advantage if possible.