In Marzano's New Art and Science of Teaching, engagement is broken into four key outcomes:
Paying attention,
Being energized,
Being intrigued, and
Being inspired.
Pear Deck/Nearpod
Classkick
Padlet
Curipod
GoNoodle
Canva Collaborative Boards
Classroomscreen
You can customize lessons for your students using education friendly TED Talks.
Discovery Education
Blooket
PhET Simulations
Khan Academy
SchoolTube
Crash Course (on YouTube)
National Geographic Kids
Students can create books about a topic they've researched or about themselves.
Canva
Padlet
Adobe Express