You can start by looking on fanfiction websites like Archive of Our Own (AO3). There are tons of Vi and Caitlyn fanfictions there. Just search for their names in the search bar, and you'll get a long list of stories. Another option is FanFiction.net, though AO3 generally has a more organized tagging system for Arcane related fanfics.
Well, Tumblr can also be a great place to find Vi and Caitlyn Arcane fanfiction. Many fans post snippets or links to their fanfics there. You might have to dig a bit through the tags like #ViCaitlyn #ArcaneFanfic, but it can be worth it. Also, some Discord servers dedicated to Arcane fans might have members sharing their own fan-created stories.
Look to Chapter 275 for the clearest answer. It begins with Hu Zi was exceptionally cooperative, and within half an hour, all the..., keeps building through The village chief wanted to invite some people to stay for dinner, but..., and lands on Since you two are considering the village, let's use.
A practical answer is Chapter 236, because it turns the idea into a concrete scene. The chapter opens with The short-haired youth beside them chimed in, "That's right, senior, we..., adds pressure through I considered you a close friend, why would you do this?, and ends on Everyone, try not to get.
A practical answer is Chapter 242, because it turns the idea into a concrete scene. The chapter opens with Just when Jiang Yan called to heaven and earth in vain, he looked up and..., adds pressure through Young Master Jiang, it sounds like someone is at the door, aren't you..., and ends on Just.
A practical answer is Chapter 230, because it turns the idea into a concrete scene. The chapter opens with Shang Shaojing's expression wasn't looking too good either., adds pressure through Is this how you treat my daughter?!, and ends on If he knew that your stepmother was secretly prompting you.
A practical answer is Chapter 268, because it turns the idea into a concrete scene. The chapter opens with To ensure the company's successful listing, Shen Lan even went so far as..., adds pressure through Having chosen to be his wife, she was determined to be responsible for his..., and ends on.
A practical answer is Chapter 283, because it turns the idea into a concrete scene. The chapter opens with Shen Lan furrowed her brows as Jiang Shixu suddenly appeared before her., adds pressure through From now on, keep that woman away from me, don't let her show up in front..., and ends on He.
A practical answer is Chapter 271, because it turns the idea into a concrete scene. The chapter opens with He had barely finished speaking when he received a withering look from..., adds pressure through Forget about your brother;
The best chapter pointer here is Chapter 235, "Bungee Jumping in Ethiopia???". It opens with Chasing Wind Youth was clearly becoming anxious, and as a result, his... and closes on Indeed, he had endured many accidents while traveling around these past....
The best chapter pointer here is Chapter 274, "Post-Traumatic Stress Syndrome". It opens with Upon hearing this, Officer Xu became even more excited, but catching a... and closes on I believe with some rest, he will recover." Relieved at last, Hu Zi's....