A WordPress plugin that contains many blocks to build your RundizStrap theme, or you can use it with any Bootstrap 5 themes.
You can manually set CSS class(es) by referring to the Bootstrap document.
Supported custom HTML attributes like <code>data-*</code>, <code>aria-*</code> in most blocks.
Available blocks:
<ul>
<li>Customizable div</li>
<li>Layout container</li>
<li>Layout row</li>
<li>Layout column</li>
<li>Search (for navbar and anywhere else)</li>
<li>Pagination (for list posts)</li>
<li>Navbar container</li>
<li>Navbar toggler button (for responsive toggler)</li>
<li>Navbar responsive wrapper (collapse, offcanvas)</li>
<li>Navbar navigation (display menu items)</li>
<li>Button (link, or button)</li>
<li>Comment form</li>
<li>Post navigation (display next, previous post)</li>
</ul>
Tested up to PHP 8.5.
The original source code is on GitHub ( https://github.com/Rundiz-WP/rundizstrap-companion ). 
It contains the original source of blocks before compile/build and blocks that are already built, the build tools via Node package (package.json).

RundizStrap Companion

A plugin that contains blocks for the Bootstrap theme that help you customize your site in your style. All blocks are based on Bootstrap CSS.

kubiq

Fully responsive Bootstrap 5 blocks, components and extends for Gutenberg
Now you can use Gutenberg editor as full-featured website builder.
Thanks to Bootstrap 5 – the world’s most popular front-end open source toolkit – you can build your layouts in 6 different breakpoints, so they will work perfectly on each device, no matter if your website visitor is on the phone, tablet, laptop or desktop.
You can use Bootstrap row and columns blocks with detailed settings for each breakpoint and autocomplete extension for bootstrap classes
<ul>
<li>Option to load Bootstrap 5 css to editor from plugin if your theme doesn’t contain it</li>
<li>Option to load Bootstrap 5 css to frontent from plugin if your theme doesn’t contain it</li>
<li>Option to load Bootstrap 5 js to frontent from plugin if your theme doesn’t contain it</li>
<li>Option to automatically add .container class to inner container of fullwidth group or cover block</li>
<li>Option to remove .is-layout-constrained class from fullwidth group block</li>
<li>Custom breakpoints control – add, remove or change any breakpoint</li>
<li>Optimize Bootstrap CSS file by disabling not needed options and parts of Bootstrap</li>
<li>Bootstrap container block</li>
<li>
 Bootstrap row block
<ul>
<li>Use quick selector to instantly select row while editing</li>
<li>Use predefined layouts</li>
<li>Generate custom layout instantly just by adding columns counts, eg. 2+8+2</li>
<li>Use any amount of columns</li>
<li>
 Use 6 different breakpoints to setup:
<ul>
<li>Vertical alignment (align-items-*)</li>
<li>Horizontal alignment (justify-content-*)</li>
<li>Gutter (g-*)</li>
<li>Row columns (row-columns-*)</li>
</ul>
</li>
</ul>
</li>
<li>
 Bootstrap column block
<ul>
<li>Use quick selector to instantly select column while editing</li>
<li>
 Use 6 different breakpoints to setup:
<ul>
<li>Size (col-*)</li>
<li>Offset (offset-*)</li>
<li>Order (order-*)</li>
<li>Vertical alignment (align-self-*)</li>
</ul>
</li>
</ul>
</li>
<li>
 Bootstrap accordion block
<ul>
<li>Two styles – default and flush</li>
<li>Always open option</li>
<li>First open on load option</li>
<li>Unlimited amount of accordion items</li>
<li>Unlimited accordion item inner blocks content</li>
</ul>
</li>
<li>
 Bootstrap tabs block
<ul>
<li>Three styles – tabs, pills and text</li>
<li>Possibility to reorder tabs</li>
<li>Possibility to add and remove tabs</li>
<li>Unlimited amount of tabs items</li>
<li>Unlimited tab item inner blocks content</li>
</ul>
</li>
<li>Component for margin and padding Spacing for any block for 6 different breakpoints</li>
<li>Component for Display visibility – display per breakpoints, print display, logged in/out display</li>
<li>Component for Size – width, min-width, max-width, height, min-height, max-height, aspect-ratio for every breakpoint</li>
<li>Component for Flex properties – control flex containers and item</li>
<li>Component for Position properties – control position and z-index</li>
<li>Component for Snapping for group block, so you can push some content out of container (or just background)</li>
<li>Component for Alignment, so you can align your text to the left for PC but to the center for mobile</li>
<li>Component for autocomplete Bootstrap classes</li>
<li>Extended formats – uppercase, capitalize, lowercase, stretched-link, mark, non-breaking space (nbsp) and soft-hypen (shy) inserter</li>
<li>Extended shortcuts – shift+alt+[1..7] to switch between paragraph and headings levels – same as in classic editor (tinymce wysiwyg)</li>
</ul>

Block Editor Bootstrap Blocks

The best plugin to implement bootstrap with gutenberg. Many many thanks

Best plugin


If you're looking for a bootstrap blocks plugin, choose this one


Top bootstrap plugin and super responsiveness from kubiq

Fully responsive Bootstrap 5 blocks, components and extends for Gutenberg

RundizStrap Companion vs Block Editor Bootstrap Blocks