I know this, I'm just saying creatively, you are limited in scope as to why a person is "good" to several tropes:
- Because it's what X person I idolize would do.
- Because noone else can.
- Because it's the right thing to do.
- Because of X, I wouldn't be here. I will do the same as them.
... Theres quite a big list, but the size of the list is infinitely bigger for Neutral and Evil characters simply because a Neutral's reasonings aren't limited to what's good, but also what's bad (without being evil), and evil people might have the same reasonings as either a good or neutral person, with just a skewed viewpoint. For example:
- A person Idolizes a serial killer, and follows their legacy as a copycat killer.
- A person does something because nooone else can do it or stop them.
- A person might think they are doing the world a favor by doing evil things.
- A person's life was ruined, so they enact bloody vengeance on everything related to that thing, without care or reason to the relation of said thing to victims.
Good characters aren't necessary limited to options, but again it's easier to write a more interesting, less flat (2D) not-so-good character than good one. If you want a list of who I think are well written "Good" characters, take a look at this:
(As much as I will get flamed for mentioning it) Sans, Undertale: Heroic antagonist or supporting character. He's lazy and punny, and until you fight him, you probably will notice very few things about him. Until you do so, he's quiet, always joking. When you fight him, he borders on Nihilist, his depression shows, and you learn that he's very intelligent and wary. He's a deep character that takes a while to figure out.
Mumen Rider, One-Punch Man: Supporting character, Heroic focus: He's the average person, compared to what are pretty much gods fighting in the streets, but he stands up and tries to fight evil anyways. Unlike typical protagonists, though, he understands his weakness and accepts it. He practices, but his main goal is to be the morality and courage the masses need, and in his fight vs one of the monsters, the crowd even cheers him on as he almost gets himself killed. Later on, he's evacuating citizens via bike, exhausted and still recovering. He was one of few people who even supported the main character. There's much more too him, but it's an interesting way to fit a somewhat common character mold.
Bruce Banner, The Incredible Hulk: Reluctant Hero. We all know the story of the Hulk, a man who can transform into a huge monster when angry and fights bad guys, but his original story wasn't so nice. He was turned into the hulk developing what was supposed to be the Gamma bomb, which was supposed to cover large areas with high power fallout. He accidentally hospitalizes his love, and goes out to kill many soldiers who tried to stop him. Other universes have the same character eventually work as a loan shark in vegas, breaking legs and homes for a casino. However, each of the hulks iterations are all focused on repentance and regret, trying to do good by people for the wrongdoing he accidentally caused or causes.
Anyways, it's like 8 AM, my boyfriends gonna take me to a movie in 8 hours and I need to try to sleep some of it. See you guys.