Hello! If anyone happens to read this, I am trying to find a few books I once read circa 2014-2016. I think for some of them the author or book may have been deleted but if anyone remembers any details you're a lifesaver! Here are their descriptions: 

1.) A YA/adventure/dystopian book 
It featured 4 teenagers/young adults who were kidnapped and placed in cells for their powers. There were 2 girls and 2 boys. One of the girls was Asian and her name was Lilly. The cover had 4 people on a mountaintop with a galaxy background.

2.) A zombie apocalypse book.
 It was short (about 10-15 chapters), and I don't really remember much except I think the main character was a teenage zombie and the book ends at a hotel pool. IIRC the author was a teacher in real life. Also, it was pretty lighthearted and didn't really feature gore or romance. 

3.) A romance book featuring a girl with a toxic mother
I can't remember much from this book either, but I recall some parts of the book like the girl's mother was verbally abusive to her, and in one scene the girl is coming down the stairs when the mom says something like she's making too much noise because she's heavy. Then when the girl gets to the bottom of the stairs, the boyfriend has a peeved expression. I also remember the boyfriend's brother became friends with the girl and they listen to Helena by MCR together.

Thanks so much for any help!