Several platforms now provide lesson planning features including Google Classroom and Edmodo, however, if you are looking for easy to use and simple lesson planners , the tools below are great to start with. They will enable you to create your lesson plans section by section, add rich media such as text, pictures and video files, collaborate with your peers and share your resources with your students.
https://www.educatorstechnology.com/2018/12/3-lesson-planning-tools-for-teachers.html