These are resources, not necessarily recommendations (though for some tools I've written a glowing review). Some are free and others are free to try then require purchase. Please check them out and decide for yourself if they will work in your classroom.
Bookshare - "People with dyslexia, blindness, cerebral palsy, and other reading barriers can customize their experience to suit their learning style and find virtually any book they need for school, work, or the joy of reading. "
Rewordify - copy and paste text to help make it easier to access. Creates a simple form of a complex text.
Vizzle -
Lexia
Webinar on Chrome Accessibility Features and Google's accessibility flashcards