The first barrier to getting your thesis accepted is your supervisor. And the best way to know what they like is to read their own writing.
Are they concise or expansive? Do they hold strong philosophical beliefs? Do they have clear preferences for one kind of research over another? These are things you need to know.
You can use this to imitate their writing style (especially if the feedback they give you is unclear), but even if imitating their style isn't necessary, reading their work is something you should do anyway.
It's easy to get caught in a literature bubble, only reading things that you think are directly applicable, but it's important to expand this and to develop an awareness of other work. Being interested in the work of those around you is the best place to start.
