Looking for help - Video Integration

Hi there, I am looking for some advice. I am working on this website: https://cestarhighschool.com. I have been trying to integrate YouTube videos on it, but I am facing some issues. Can someone tell me how to embed IFrame as a link? Like, when I click the play button, I want it to open on a separate page or in a pop-up.
How can I do that? It would be great if someone can help me with your valuable advice. Thank you.