1. Good Girl Likes Bad Guy
2. The All Powerful
3. "OMG I'm a what"
4. Best Friends Falling in Love
5. Falling for someone who's at the top of the food chain
Here's a better way of thinking about this trope: Imagine you're pining after this celebrity, who you know you can't have but you still love him/her to pieces. That's what this trope reminds me of. The feeling of longing and pursuing someone you know you'll never be with is weirdly fascinating to me.
6. Teacher & Student Relationships
This trope doesn't necessarily mean the teacher and student have to be in love. I'm just talking about students having a plain and simple connection with their teachers, other than what's talked about in class. I think we can all personally say that we've had that teacher who just understands us more than our friends do. I mean, don't get me wrong I'm all for a teacher as the love interest but it has to be done astonishingly well. The topic is frowned upon and is often called taboo. A great example is Even When You Lie to Me by Jessica Alcott, which took the whole book to develop the love between student and teacher. It wasn't mainly based off of attraction or as a mere tactic to boost a grade. I'm sorry but a horrible example of this trope would have to be in Before I Fall by Lauren Oliver. For starters, the MC only liked the teacher because he was 'hot'. Another reason was because they 'did it' while they were still in the school building, which I think is stupidly reckless.
There are some cases where the student and teacher have a common interest and therefore have a connection. This doesn't have to be romantic in any way. In Forgive Me Leonard Peacock by Matthew Quick the MC is a troubled young man who plans to kill his ex-best friend and then himself. However his mutual connection with his teacher, the only person that truly understands him, will be the one to save the day!