Alvaro

<a href="https://melonpan.io/gutenberg-blocks/melonpan-block-post-list" rel="nofollow ugc">Documentation</a> – <a href="https://github.com/garciaalvaro/melonpan-block-post-list" rel="nofollow ugc">GitHub</a>
Block that displays a list of selected Posts and Custom post types. No stylesheets or scripts are added in the front-end.
<h3>Usage</h3>
The block can be found inside the blocks inserter menu under the Melonpan Blocks category. 
Once added in the post you can edit its settings on the Editor sidebar under the Block settings panel. 
The block renders dynamically. This means it doesn’t save any content in the Post content, it renders the content when the post loads.

Melonpan Block – Post List

Block that displays a list of selected Posts and Custom post types.

George Pattichis

Simple CPT is a free WordPress plugin that lets you create custom post types and custom taxonomies (eg: categories, tags, etc.) directly from your admin dashboard without writing a single line code.
No more editing files manually. With Simple CPT you can create a new Custom Post Type in less than 1 minute.
This plugin is written using only native functions, included in WordPress core, so it does not in any way reduce the performance of your website and will not cause any compatibility problems. Simple CPT is completely free, it will save you time and it is compatible with almost all themes and plugins out there.
In just a few minutes you can adapt your WordPress site to any type of project in a professional and extremely efficient way, e.g. ecommerce, hotel, restaurant, events, portfolio, community websites etc.

Simple CPT

Simple CPT provides an easy to use interface for registering and managing custom post types and custom taxonomies.

Melonpan Block – Post List vs Simple CPT