Insert Learning." This tool is a Chrome extension that allows you to customize online articles you find for your students. With this tool, you can highlight text, insert sticky notes, add questions and add discussion right within the article itself. Then, after you have created what you want, can assign it to your class via Google Classroom, making it a very smooth process. The free version is limited to five "assignments" but check it out and perhaps this is something you would want to have your school buy for you.
Here is an example: https://insertlearning.com/v1/share/32uidqf1 (Add the Insert Learning chrome extension and check out the example).