Arevico

<h4>This plugins isn’t maintained anymore. It will be replaces by a new plugin with more functionality, better code quality and better support.</h4>
Multi Functional Flexi Lightbox: Imagine all lightbox uses you can think off. Imagine what effects this can have too you traffic.
<h4>Features</h4>
With this plugin you can: 
 * Promote blog post with an higher adsense EPC 
 * Display a opt-in form in a lightbox 
 * Advertise Clickbank/LinkShare/Amazon and other affiliate products 
 * Put a facebook button in a lightbox, to get a bigger social media footprint 
 * Put in any other html code
You will have to find the appropiate code, banner, etc yourself. Contact arevico support if you need help with this.

Multi Functional Flexi Lightbox

This plugins isn't maintained anymore. It will be replaces by a new plugin with more functionality, better code quality and better support.

Arno Welzel

This plugin integrates PhotoSwipe to WordPress. All linked images in a post or page will be displayed using PhotoSwipe, regardless if they are part of a gallery or single images.
More about the original version of PhotoSwipe see here: <a href="http://photoswipe.com" rel="nofollow ugc">http://photoswipe.com</a>
You can also display EXIF data from supported image types.
As of version 4.0.0 this plugin requires at least WordPress 5.3 and PHP 7.0. Older PHP version will cause problems. In this case you have to upgrade your PHP version or ask your hoster to do so. Please note that WordPress itself also recommends at least PHP 7.4 – see <a href="https://wordpress.org/about/requirements/" rel="ugc">https://wordpress.org/about/requirements/</a>.
Please keep in mind: not the visible thumbnail is relevant, but only the image link. Images should always be linked to the file and not to the attachment page. Since version 5.6.1 there is an option to fix attachment links which can be enabled if needed – however this may slow down your website since then all links on a page will be checked if they are attachment links.

Lightbox with PhotoSwipe

Amazing lightbox plugin

Integration of PhotoSwipe (http://photoswipe.com) for WordPress.

Multi Functional Flexi Lightbox vs Lightbox with PhotoSwipe