What this Repository does is that it gives the ability to add and image on top of an embedded video. It also has a pulsing button to give it an interactive design.
Replace the source and then check what kind of features you want at the end of the source, like auto place or display relative videos.
<iframe class="videoIframe js-videoIframe" src="https://www.youtube.com/embed/FNPqWao47c0?autoplay=0&rel=0" title="QuietCool What does a whole house fan do?" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
</iframe>All you would have to do is replace the Background-image source and that should do the trick!
<button class="videoPoster js-videoPoster" style="background-image:url(https://airsmart.quietcooldealer.com/wp-content/uploads/2022/01/AtticFans.webp);background-size:contain;background-repeat:no-repeat;background-position:center;">
</button>