So is the Lost Thing your chosen related text? Or you have to use it?
This post I feel you are fishing for someone to do your homework-I didn't do the Crucible so I can do it and nor will you get anywhere in your HSC me doing all your work
Finding your own quotes will make you remember them.
The way I would approach it is as follows;
*Brainstorm all the different sorts of belonging in both texts-some core belonging values might be the same like family, but some might be able to be implicitly linked like self awareness with cultural identity etc.
*What does each text say about the different areas of belonging? Do these complement or conflict?
*Look at how similar techniques are used across the texts? Is visual symbolism used in both? Is colour used in both? To the same effect or contrasting perspectives on belonging?
It is considering what both texts say on belonging before we can extrapolate links and contrasts. This is something you can only do yourself