Embedded videos have significant impact on your site’s loading speed. In this video I will show you how to avoid this common pitfall and not only use as many videos as you want on any page without slowing your site down, but also get more plays.
ARI Fancy Lightbox is a great lightbox plugin that has a fully functional free version, you can find it in WordPress plugin repository and use with YouTube and Vimeo. Documentation and demos can be found here ARI Fancy Lightbox
Modulobox is a paid lightbox plugin. It allows you to create mixed content galleries and works with YouTube, Vimeo and Wistia.
Documentation and demos for Modulobox