Use the Search Box in each ebook link to look for a particular saint.
Sophia Network for Teachers has made content available for free. Even though most of it applies to teaching at a distance with their textbooks, there are also excellent daily and weekly resources that could be of help: https://sophiainstituteforteachers.org/COVIDAtHomeLearning?utm_source=mailchimp&utm_medium=email&utm_campaign=covidRO
Sample article: Teaching the Faith through Current Events: Teaching with current events: Solidarity through Social Distancing : https://sophiainstituteforteachers.org/elesson/free-current-events
Sample activity: Annunciation picture to color: https://sophiainstituteforteachers.org/uploads/blog/March_25-_Annunciation.pdf