I teach in alternative education so there are things that have worked.
I recently got this book, which is full of awesome ideas: https://www.amazon.com/Reading-Strategies-Book-Everything-Developing/dp/032507433X
Other things that work:
Mostly I cannot stress enough that students need the opportunity to engage in productive struggle with a text. So often we see kids struggle and step in and do the work for them, or we let them skip words. This doesn't work. Encourage students to ask questions and take breaks (but not quit) when they get frustrated.