There are now a ton of these kinds of "best HTML5 games" articles knocking around. For example, http://tutorialzine.com/2015/02/30-amazing-games-made-only-with-html5/.
Plenty of inspiration there, and it's quite interesting to see what people can do with WebGL these days. I don't know how many of these are actually developed with Unity (for example) but I hear rumours that Unity targeting HTML5/JS isn't a great experience so I'd be surprised if you could get something as polished as that Wipeout style game at the top of the list with it. (Maybe some Unity devs can chime in on this - I don't use it.)