Sashko

Selectively makes your galleries to sliders, with options to customize it as u wish. 
Pretty easy options on sreenshot-1. Thumbnails can be used instead of dots in your slider like on screenshot-3. After you setuped it just make gallery with number of columns that u chose and it will work like a slider on screenshot-2. After that you can style it as u wish with css. 🙂

Mega-giga-gallery-slider

Gerasimos Tsiamalos

Vassilis Mastorostergios

Anastis Sourgoutsidis

The CSSIgniter Team

MaxSlider is probably the easiest way to add a custom responsive slider to any page of your website. Create unlimited sliders with unlimited slides and custom settings per slider/slide!
<iframe loading="lazy" title="How to install MaxSlider and create your first slider in WordPress" width="750" height="422" src="https://www.youtube.com/embed/iMSTcD8JwnM?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
Check out <a href="https://www.cssigniter.com/preview/maxslider/" rel="nofollow ugc">the demo</a> now!
Features:
<ul>
<li>Unlimited Sliders</li>
<li>Unlimited slides per slider</li>
<li>Responsive layouts</li>
<li>Flexible settings per slide/slider</li>
<li>Auto-slide option</li>
<li>Slide effects</li>
<li>Set the pause between slides</li>
<li>Set a custom height per slider</li>
<li>Show/Hide Previous/Next Arrows</li>
<li>Set Background/Foreground arrow colors</li>
<li>Set title text, title size and title color per slide</li>
<li>Set subtitle text, subtitle size and subtitle color per slide</li>
<li>Set button text, button background color, button text color, and button URL per slide</li>
<li>Set horizontal and vertical content alignment per slide</li>
<li>Grab the shortcode and show your sliders anywhere on your pages</li>
<li>Block editor (Gutenberg) block available</li>
<li>Visual Composer custom module available</li>
</ul>

MaxSlider

MaxSlider is a free WordPress slider plugin that lets you create responsive sliders for your website. Shortcode and Visual Composer support included.

Mega-giga-gallery-slider vs MaxSlider