We have a few secondary SLPs on our team, and we've worked together to build out hundreds of materials for this population!
Materials for Secondary Students include:
Reading Passage Units: For upper elementary and secondary students
Fiction Units: For upper elementary and secondary students
Nonfiction Units: For upper elementary and secondary students
Science Experiment Units: For upper elementary and secondary students
Vocational Units: For secondary students
Check out this post for more details.