Trapped in the multi-verse

I am trapped in a writing multi-verse. I am working on a book review due in two weeks. I have read the book (it was great!), made my notes, sketched out the points I want to hit in the review. I know more or less how I want to wrap it up. If only I knew how I wanted to start it. So far I have ten different ways in. It's the opposite of writer's block, but just as painful. I have leaned on Taylor Swift, radioactivity, crafted mother-daughter analogies, evoked rom-com scenes, tread closer to personal grief than one should in this sort of writing. I am no closer to getting that first paragraph out than I was at 10:30 this morning. 

I just. Need. To. Pick. One.