MUST-READ books as an aspiring author ?

Hi everyone!

Recently I’ve had a thing for fantasy books, as part of my writing growth path. I’ve made my own list of books I like, but I’m curious if there are other, must read, books that are not only great stories that authors should read, but books that teach us how to be better

I want to learn more of what I can do in stories, what techniques I didn’t think about, and see things in a new way, whether I am reading or writing.

To give you an idea of the kind of story I’m working on, here’s few notes about my book:
-young adult: While the story centers around young adults, mature adults play crucial roles alongside them, driving many pivotal events.
-urban fantasy : it's set it in time period of "2015-2019". it doesn't have mythical creatures though , or any type of magical beings in general.
-low fantasy

It's not necessary for the books to match exactly those 3 notes I mentioned above.
and thank you in advance for any type of suggetsions