Singsys Awesome Gallery is a great plugin to manage images in gallery very easily.

Integrate Wordpress default gallery shortcode ([gallery]) with jquery modal popup.

WordPress Gallery plugin is a wonderful tool for creating videos for your visitors. This Responsive plugin will allow you to show Youtube & Vimeo Video.

Simple Plugin but unique and awesome slider.. very easy to use.. give it a try

Check it out.. It's an awesome Gallery Slideshow Plugin