I’d been looking for something like this for a long time too.
For the past couple of months, I’ve been using an IFTTT recipe that takes anything I watch on YouTube, which I designate essentially with their thumbs up, and it creates a draft post on my site. https://ifttt.com/applets/46019464d-if-new-liked-video-then-create-a-post-on-your-wordpress-blog
Some things I keep privately while others get posted publicly. You could write most of the format of your “like” within the IFTTT interface, including the u-like-of.
For a while I’ve been using the Post Kinds Plugin to parse the URL and pull in the meta-data as well as wrapping it with the u-like-of. Despite being more of a PESOS workflow, it’s pretty quick and simple. Here’s a recent “watch” post: http://boffosocko.com/2017/11/06/dont-worry-be-happy-by-bobby-mcferrin/ Though you could easily change the “Watch” metadata to a “Like” without a lot of work.
Post Kinds Plugin is theme-able so you can modify things to display the way you’d like, though I generally find the default is pretty solid.
Alternately, Post Kinds also allows you to create a bookmarklet that imports the URL directly to quickly create a post (of almost any type). I’ve detailed how to do it here: https://boffosocko.com/2017/08/11/post-kinds-plugin-for-wordpress/#Bookmarklet+Configuration