i have a lot of books to read right now so this might be set to change, but currently my fave is They Both Die At The End by Adam Silvera. it is a romance, but it's a really beautiful one between two guys who both know they are going to die that day. it made me cry when i finished it, which is kinda big cuz i don't normally cry over books
i also really like The Last Kids on Earth series, which is targeted more towards kids, but they're still really good! it's about a group of kids who are stuck in a monster-zombie apocalypse, so they have to navigate their way through it! it has very fun illustrations too ! there is also a little bit of romance stuff, the main character has a crush on a girl, but otherwise i think it's fine? i'm still catching up on the books since apparently there were 3 new ones that came out and i didn't know