One great Rin and Obito fanfiction is 'A Different Path'. It explores an alternate universe where Obito returns to the village earlier. The story delves deep into their relationship, showing how they might have interacted and grown together. The character development is really well - done, and it gives a fresh perspective on their bond.
The sad story of Obito and Rin is a key part of the Naruto narrative. Obito was a young ninja with big dreams and a huge crush on Rin. When Rin was seemingly killed in front of him, it shattered his world. He thought that the ninja world was full of pain and betrayal. This led him to be influenced by Madara. He became one of the main antagonists, all because of his love for Rin and the unbearable pain of losing her. His journey from a hopeful young ninja to a vengeful villain is a tragic consequence of Rin's death.
Obito had a deep love for Rin. He always cared about her and tried to protect her. His love was pure and strong. However, their story was filled with tragedy. Rin's death was a great blow to Obito and changed him in many ways.
A good Rin and Obito fanfiction should have strong characterizations. Since we already know the basic personalities of Rin and Obito from the original story, the fanfiction should build on that and show new aspects of their characters. For example, how Obito might have changed if Rin had survived.
Another common theme is the exploration of their past relationship. Fanfics often go back to their childhood days and show how their feelings for each other started. This gives readers a deeper understanding of why they are so important to each other.
One common theme could be unrequited love. Given the complex relationship between Obito and Rin in the original Naruto story, fanfics might explore the idea of one of them having feelings that the other doesn't initially recognize. Another theme could be redemption. Obito has a rather dark past in the series, and fanfics might show how his relationship with Rin could be part of his journey towards redemption.
Long - lost love is also a popular theme. Sometimes, due to various circumstances in the Naruto universe, they are separated, and the fanfictions focus on how their love endures over time and distance. Also, the theme of unrequited love can be explored, where one might think the other doesn't feel the same way at first, but then the story unfolds to show otherwise.
One possible plotline could be a what - if scenario. For example, what if Obito didn't 'die' and he and Rin finally confessed their feelings and shared a kiss. Another could be a time - travel plot where Obito gets a chance to go back and change things, leading to a kiss with Rin.
Yes, there are some out there. You can try looking on fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'Obito and Rin Kiss' in their search bars and you might find some interesting stories.