I've read all three, and I would recommend reading Orwell's 1984.
Growing Up Asian in Australia is basically a collection of stories/text (anthology) regarding issues with implications regarding Identity and Belonging (I studied it for Year 12 Context this year).
Curious Incident is basically about a kid that has some (unnamed) syndrome/disorder and is narrated in first-person, describing his search for some dead dog/whatever (i read it like 2-3 years ago, dont judge me)
1984 i enjoyed the most though. Though curious incident, through its first-person narration, which is both funny and depressing and feel-good (yeah), I reckon 1984 is probably the text that's stood out for me the most in my years of schooling, cos of its implications regarding totalitarianism/suppression etc. It really does spark a lot of debate within the classroom, and I really enjoyed discussing the book with my classmates... Plus there are more resources and critiques online for it.
O ye, for Macbeth, be sure to listen/watch the play first before reading it - it's a lot more enjoyable!