Students can sign up for free to recieve a library card to access their e-book and other online content.
Newsela provides up-to-date, high-interest articles will meet students right at their level, and help teachers bolster students' nonfiction reading skills. Reading levels of the articles can be easily differentiated to suit different learners.
CommonLit is a completely free literacy resource design formiddle and high school classrooms. It offers a growing collection of literacy resources, questions, and tools for helping students improve their ELA skills. It is a US-based site, and standard considerations about pedagogy and bias should always be followed.
Collection of thousands of books available in the public domain.