i did a quick search on my goodreads and here are some <150 page reads that i gave 5 stars!
heart berries by terese marie malhot- uniquely told memoir about the life of an indigenous canadian woman
a room of one's own by virgina woolf- classic, brilliant feminist text
happening by annie erneaux- annie erneaux has lots of really short books. i've read two by her and both have absolutely blown me away, this one is about her experience having an illegal abortion in 1960s france
the eye by vladamir nabakov- only 100 pages and thrilling!