You can basically do this with any embeds (granted they don't do a lot of global fuckery, which is a lot of them). Make sure the embed code gets evaluated within a function, then call that function when the user clicks on your "proxy" image. You might have to do a replace of the DOM elements as well, so the embed code gets what its expecting.

There are a few "facade" solutions listed at https://developer.chrome.com/docs/lighthouse/performance/thi... But.. AFAIK nobody has made one for Soundcloud.