There may be many fanfics out there with this theme. You could also look for fanfic communities on social media platforms dedicated to the Twilight series. Members might be able to point you towards some great 'bella is a waitress possessive edward fanfic'. Sometimes these fics explore not just their relationship but also how Bella's job as a waitress affects her self - identity within the context of Edward's possessive love.
I'm not sure of a specific titled 'bella is a waitress possessive edward fanfic' right off the bat. But you could try searching on fanfic platforms like Archive of Our Own. Usually, fanfic authors play around with this concept in different ways, some might focus on the power dynamics in their relationship given Edward's possessiveness and Bella's job as a waitress.
Chapter 205, "The Fairy Descends to the Mortal World", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. Early on, Ah Fu had no idea what the video Jiang Li mentioned was.. By the end, Having such a sister certainly would bring happiness..
Chapter 308, "Want me to surrender to him? Don't even think about it!", is the clearest early answer because it turns Aunt Ying's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Li sighed, "Where is your mind wandering?
Chapter 11, "She Smiled, He Panicked", is the clearest early answer because it turns Lin Manru's situation into a concrete plot event.
Chapter 92, "Why would a 19-year-old girl read this kind of book?!", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jiang Li, lightened from any task, had plucked a few leaves from the...
Chapter 97, "Can This Really Be Broadcast?", is the clearest early answer because it turns Sister Li's situation into a concrete plot event.
Chapter 261, "They've Ruined the Entertainment Industry!", is the clearest early answer because it turns Director Sun's situation into a concrete plot event. The chapter turns that into something concrete by moving from The village chief's eyes nearly popped out after he heard the whole...
Chapter 5, "Catching Adultery Personally", is the clearest early answer because it turns Manager Fang's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Actually, when Manager Fang saw Jiang Li, he was somewhat surprised.
Chapter 512, "The Ultimate Rich Foolish Uncle", is the clearest early answer because it turns Youth Trainee's situation into a concrete plot event. The setup is An Jing would have been surprised if she could recognize him;
Chapter 139, "I Will Help You Chase Shang Shaojing!", is the clearest early answer because it turns President Shang's situation into a concrete plot event. The chapter turns that into something concrete by moving from Wen Jiaojiao's live stream was inundated with a wave of question...
Chapter 130, "Director Sun: He Got Schooled Again?", is the clearest early answer because it turns Uncle Zhao's situation into a concrete plot event.