Blip TV Episodes plugin will allow you to setup a video widget, easily add videos to posts then watch them appear in the sidebar when viewing that post.
Blog Post Schema is a simple, light-weight, powerful plugin that generate schema data structure for each article, blogpost, and breadcrumbs that is active on single post page.
Colorbox panels is the most easiest drag & drop icon box and content box builder for WordPress. You can add unlimited panels with unlimited colour scheme.