From a writing perspective these are things I've seen other authors do that I myself enjoy doing.

• First Person POV. I find that this works well with my writing style and feels most natural to me. It also helps solidify myself into the minds of the characters.
• Chapter titles. Usually following a format but not always.
• starting the book in the thick of it where the reader is just dropped into the middle of the action and what's going on is slowly revealed over the course of the book. My aim: to make the reader go, 'what the FUCK is going on?'
• I aspire to throw a map in the beginning but I'm shit at cartography as my d&d group can attest
• love the Good All Along trope
• switching up the speaking patterns of characters so you can recognize who is speaking even before you're told. This takes some work on psychological linguistics but is fascinating and so worth it
• introducing new phrases or slang that fit in the world
• I love it when I learn something from a novel so I always try to insert (not shoehorn) some facts