Epic
Huge selection of online books! Free with class login code
https://www.getepic.com
Raz Kids
For K-3 students with class login
https://www.raz-kids.com
Capstone Interactive
Free Online Books with a Read Aloud Option
http://www.mycapstonelibrary.com/menu/#/bookshelf
Rivet
https://rivet.area120.com
Scholastic Magazine
https://classroommagazines.scholastic.com/support/learnathome.html?caching
Scholastic Homebase Digital Stories and Games
https://kids.scholastic.com/kids/games/homebase/
Reading is Fundamental Literacy Central
Skybrary ebooks from Reading Rainbow are free for a month trial. Lots of free read aloud videos always available. Other great resources as well.
https://www.rif.org/literacy-central
Time for Kids magazine
Free during School Closures
https://www.timeforkids.com
Oxford Owl
https://www.oxfordowl.co.uk/home/reading-owl/find-a-book/library-page#
Wilbooks
https://www.wilbooks.com/free-resources-free-online-books
Free Children's Stories
https://www.freechildrenstories.com
Flyleaf Publishing
https://portal.flyleafpublishing.com/learners-resources/
Text Project
http://textproject.org