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Responsive Video Gallery is a very effective WordPress video gallery plugin which allows you to make nice looking video galleries with responsive layouts and customizable styles. It’s very easy to use & manage everything via options page. Need some simple step to create your video gallery.
<ul>
<li><a href="http://pluginspoint.com/videogallery" rel="nofollow ugc">Live Preview</a></li>
<li><a href="http://pluginspoint.com/videogallery" rel="nofollow ugc">Documentation</a></li>
</ul>
Plugin Features 
<ul>
<li>100% Responsive.</li>
<li>Clean design & code.</li>
<li>No coding required.</li>
<li>Support video (Youtube, Video, Dailymotion).</li>
<li>Unlimited video gallery.</li>
<li>Drag & Drop Video Sorting.</li>
<li>Unlimited shortcode anywhere.</li>
<li>Video column (2,3,4,5,6).</li>
<li>Add or remove video by back-end.</li>
<li>Video types(youtube, vimeo, dailymotion).</li>
<li>Auto Detect video Thumbnail.</li>
<li>Video area background color.</li>
<li>Support video title.</li>
<li>Title color.</li>
<li>Title font size.</li>
<li>Title text transform.</li>
<li>Title text style.</li>
<li>Title text alignment.</li>
<li>Support video caption.</li>
<li>Caption font color.</li>
<li>Caption font size.</li>
<li>Caption text transform.</li>
<li>Caption text style.</li>
<li>Video grayscale option.</li>
<li>Video height option.</li>
<li>Video overlay background color.</li>
<li>Video overlay image opacity.</li>
<li>Display video by video ID.</li>
<li>User friendly option page.</li>
<li>etc</li>
</ul>

Video Gallery

Responsive Video Gallery WordPress plugin

Kyle Gilman

<h4>A plugin to make video players, thumbnails, multiple resolutions, and video galleries.</h4>
This video plugin adds several options to any video uploaded to the WordPress Media Library. If your video can be played natively in your browser, or if you have FFMPEG installed on your server (optional), you can generate thumbnails from your video. Using either the “Generate” or “Randomize” buttons will create a selection to choose from. Click “Insert into Post” and you’ll get a shortcode in the post editor that will make a flexible, responsive video player.
If you provide multiple H.264 resolutions, Videopack can automatically select the one closest to the size of the player or a resolution of your choice, and provide a button for users to select the resolution manually. If FFMPEG is installed on your server, Videopack can encode the videos automatically.
You can also use Videopack to create a popup video gallery. The shortcode uses options similar to the <a href="https://codex.wordpress.org/Gallery_Shortcode" rel="nofollow ugc">WordPress image gallery shortcode</a>. In its simplest form it will create a gallery of all videos attached to the post.
You can now add advertisements to your videos using the <a href="https://www.videopack.video/add-ons/videopack-ads/" rel="nofollow ugc">Videopack Ads</a> premium add-on which you can purchase from the Add-ons tab of the Videopack Settings page or on the <a href="https://www.videopack.video/add-ons/videopack-ads/" rel="nofollow ugc">Videopack website</a>.
Not compatible with the Block Editor. Please continue to use the <a href="https://wordpress.org/plugins/classic-editor/" rel="ugc">Classic Editor</a>.
Visit the <a href="https://www.videopack.video/docs/" rel="nofollow ugc">Videopack Documentation pages</a> for more info.

Videopack

Great solution for generating thumbnails from images. 
Thank you for the work put into this plugin.

Excellent

Makes video thumbnails, allows resolution switching, and embeds responsive self-hosted videos and galleries.

Video Gallery vs Videopack