jkolodziej

ShelfBuilder Lite is a Gutenberg block plugin that lets you create curated, hand-picked grids with full drag-and-drop ordering. Unlike query-based blocks that automatically pull content, ShelfBuilder gives you complete control over which items appear and in what order.
How it works:
<ol>
<li>Add the ShelfBuilder block to any page or post</li>
<li>Choose a content type (Posts, Pages, or custom post types)</li>
<li>Pick specific items from a searchable, scrollable list</li>
<li>Drag and drop to arrange them in your preferred order</li>
<li>Customize the grid layout with sidebar controls</li>
</ol>
Features:
<ul>
<li>Drag-and-drop grid ordering with visual gap indicators</li>
<li>Searchable item picker with tag filtering</li>
<li>Customizable columns (1-6), gap spacing, and card max width</li>
<li>Image aspect ratio options (square, landscape, wide, portrait)</li>
<li>Text alignment controls (left, center, right)</li>
<li>Grid padding for centered layouts</li>
<li>Responsive design (2 columns on tablet, 1 on mobile)</li>
<li>Lightweight — no jQuery dependency, minimal CSS, zero frontend JavaScript</li>
</ul>
Looking for WooCommerce support?
<a href="https://pixelsandpetals.net/product/shelfbuilder-pro" rel="nofollow ugc">ShelfBuilder Pro</a> adds WooCommerce products, product categories, product tags, pricing display, item counts, add-to-cart buttons, hierarchical category browsing, and product tag filtering — all for a one-time $1 purchase.

ShelfBuilder Lite

A visual grid block with drag-and-drop ordering. Hand-pick posts and pages, then arrange them like items on a shelf.

johannesfosseus

This is a small but great plugin that makes it possible to add drop zones to your frontend. It uses HTML5 native drag/drop javascript methods so use a modern browser!
Options 
You can choose if you want to use excepts, and images, and the image max heigth and width

Drop-Zone

Adds a widget that adds "drop zones" to your site front end. Then you can drop posts to the zones and they will stay, magic!

ShelfBuilder Lite vs Drop-Zone