Well, in 'buffu angel' fanfic, one common theme is redemption. Maybe the angel has made some mistakes in the past and is trying to make up for it. There can also be a theme of love, not necessarily romantic love but also love for humanity or other beings. The idea of protecting something or someone dear is also quite common. This could be related to the angel's role in the fanfic world. Additionally, the theme of transformation is often seen. The angel might transform physically or in terms of its personality as the story progresses.
Well, usually to find non - NC17 'buffu angel' fanfic, you could start by joining relevant fan communities. For example, on Reddit, there might be a subreddit dedicated to this particular fanfic genre. People there can point you in the right direction. They might share links to some clean and really well - written 'buffu angel' fanfic that doesn't involve any inappropriate content. Also, don't forget to check out some independent fanfic blogs. Some bloggers are really good at curating and sharing great fanfics that are family - friendly.
One common theme is redemption. The broken angel often tries to atone for something or regain its former self.
One common theme is friendship. Despite their differences, they form a bond. Another is the idea of redemption. Kenny might be seen as someone who needs to be redeemed in some way, and the angel could play a role in that.
Love is also a fairly common theme. It could be love for the angel that drives the characters to seek vengeance. There might also be themes of sacrifice. The characters may have to sacrifice a lot in their quest to avenge the angel. For example, they might sacrifice their own safety or relationships. In addition, the theme of power often comes up. Whether it's the power the angel had, or the power the avengers need to gain to succeed in their mission.
One common theme is the struggle between good and evil. Since you have an angel representing good and a devil representing evil, there's often a battle of ideologies. Another theme is redemption. Sometimes the devil character is shown to be redeemable through the influence of the angel.
Power and its consequences can be a theme as well. The 'angel of slaughter' is likely to have a great deal of power. Fanfics might explore how this power affects the character, those around them, and the world they exist in. Does the power corrupt? Or can it be used for good despite its violent origin?
One common theme is friendship. Their bond is often explored in different ways, like how they support each other through tough times. Another is adventure. Many fanfics send them on exciting quests or journeys.
One common theme is redemption. Angel, being a vampire with a soul, often has a journey of redemption, and Xander can be a part of that journey in the fanfic. For example, Xander might be the one to push Angel further towards the good side.
One common theme is the struggle between good and evil. The angel, with their shotgun, might be fighting against demons or other dark forces, representing the battle for the greater good.
One common theme is the struggle with identity. Characters with the angel bloodline often have to figure out where they fit in the Naruto world which is mainly dominated by ninja skills. Another theme is power and its control. The angel bloodline usually comes with powerful abilities like flight and enhanced senses, and characters have to learn to control these powers.