If you’re looking for something for your kids to read, you can find a collection of free digital books on the Gutenberg Project’s website. These books are typically classics, and are available in a variety of digital formats.
Of course, this isn’t just for kids, there are books for adults too.
The Gutenberg Project has books in a variety of languages, so you’ll also find ebooks in Hebrew, for example.
On a related note, Amazon is also making children’s Audible books available for free during school closures, so if your child prefers to listen to books, head here.