tomoya

This plugin widget is very simple. 
The list of the entry can be displayed in the sidebar by specifying a favorite category when this plug-in is used.

Limited Category Lists Widget

Limited Category Lists Widget is a wordPress widget, lists the limited category as shown in the name.

faina09

Claude

bungpm

arne

Creates unlimited number of Events that can be booked by users.
Displays – in the same page of the form booking Event – the list of users that booked their partecipation to the Event.
You can use a shortcode to place the booking form anywhere in your posts or articles.
The User must be logged in to be able to book an Event: username is displayed and name+surname is grabbed from WP User Profile.
The Administrators can delete/add/update the Users’ bookings.
Try it out on your <a href="http://tastewp.com/new?pre-installed-plugin-slug=WP-Fevents-book&redirect=options-general.php%3Fpage%3Dfeventsbook&ni=true" rel="nofollow ugc">free dummy site</a>. 
The link spins up a new TasteWP instance with the WP FEvents Book plugin already installed.
Works with PHP 5.2.12 or higher, and PHP 7.x: please report any issue you find, and any feature you want. I’ll try to fix the firsts and to implement the seconds!
If any bug found please ask me for support!
+++
<h4>Supported languages</h4>
<ul>
<li>English</li>
<li>Italian – it’s my native language!</li>
<li>German – thanks to Arne</li>
<li>French – thanks to Claude</li>
<li>Croatian – thanks to Borisa Djuraskovic from www.webhostinghub.com</li>
<li>Hungarian – thanks to Mladen Blatnik</li>
</ul>

WP FEvents Book

Creates unlimited number of Events that can be booked by users.

Limited Category Lists Widget vs WP FEvents Book