Ptah Dunbar

The WordPress Loop widget was written to allow users that don’t know their way around PHP to easily show their content in any way they’d like.
The widget has over 35 options to choose from. Customize your WordPress loop by one or more post types, categories, tags, custom taxonomies, authors, dates, custom fields, and a whole lot more!
In addition, it has support for post thumbnails, sticky posts, pagination, offsetting, customizable content length (by word count), and you can change the ordering from a variety of options. Oh, and you can also customize the .
WordPress Loop is truly an all-in-one solution for displaying your content on your site.
View the <a href="https://wordpress.org/extend/plugins/wordpress-loop/faq/" rel="ugc">FAQ</a> section for more info on how to use WordPress Loop.

WordPress Loop

A WordPress widget that gives you unprecendeted control over displaying your content.

Amaury Balmer

Nicolas Juen

This plugin allow to build relation between 2 custom types (posts, page, custom), very useful for manage related content on CMS type website.
A few example use cases:
<ul>
<li>manually lists of related posts</li>
<li>post series</li>
<li>rented houses connected to agency</li>
<li>etc.</li>
</ul>
Relationships are created from a settings page from the administration console.
This plugin can not do relationships with users, you should test this excellent plugin made by scribu 
https://wordpress.org/extend/plugins/posts-to-posts/

Relations Post Types

This plugin allow to build relation between 2 custom types (posts, page, custom), very useful for manage related content on CMS type website.

WordPress Loop vs Relations Post Types