Md Rashed Hossain

<p>Are you want to add Guest Post system with frontend form, this plugin will help you to do this very easily. You just need to use two shortcodes.</p>
<h3>Features</h3>
<ul>
<li>Frontend form</li>
<li>You can show posts on frontend just using shortcode</li>
<li>Only loggedin users can access the form</li>
<li>By default all the posts status will be “Pending”</li>
<li>Very clean code, so you can modify the plugin very easily</li>
</ul>
<h3>Usages</h3>
<ul>
<li>Use this shortcode <strong>[mlgp-form]</strong> to show post submission form.</li>
<li>Use this shortcode <strong>[mlgp-post]</strong> to show post on frontend.</li>
</ul>


Safan Guest Post

This plugin will help you to add Guest Post feature in your wordpress site.

whatsthebigidea

<p>/</p>
<p>Ideas</p>
<p>If someone has an idea they want to bring into the world, now they can start an idea working group on your WordPress! Allows a user to post an idea to an Ideas page at /Ideas/. A BuddyPress group with bbPress forum<br />
    are automatically created when this post is published!</p>
<p>-During installation, there is a prompt to auto-install the required plugins: User Submitted Posts, BuddyPress, bbPress and WordPress Classic Editor.<br />
  -The User Submitted Posts required plugin is used to provide the way for users to post an Idea.<br />
  -The users post appears in wp-admin to be edited and published by the site admin.<br />
  -When published, a BuddyPress group with bbPress forum are created automatically!<br />
  -Ideas posts are all displayed on the /ideas/ page.<br />
  -The Ideas page displays links to the BuddyPress group, a donate url, and has a description of the Idea.<br />
  -The data contained in the ideas.xml file is displayed on the /ideas/ page.<br />
  -The Ideas from any other sites can be displayed on the /ideas/ page.<br />
 /</p>
<h3>Arbitrary section</h3>


BigIdeas

Allows a user to post an idea to an Ideas page at /Ideas/. A BuddyPress group with bbPress forum are automatically created when this post is published …

Safan Guest Post vs BigIdeas