beeender

This is a similar plugin with WP-Cumulus (https://wordpress.org/extend/plugins/wp-cumulus/) but implemented with HTML5.
This plugin requires the modern browsers which support HTML5.

Cumulonimbus

Cumulonimbus allows you to display your site's tags on the surface of a rotating sphere.

This Related Posts Plugin for WordPress displays links to a given number of Posts that are related to the current post(s) by Tags or Categories. It can Automatically add links to Related Posts at the bottom of every Post or you can drop the Widget on your sidebar.
Settings: Excluding posts, categories, and tags; section heading; number of links; display post date; and excerpts.

EZ Related Posts Footer Links and Widget

Display a linked list of related Posts by Tags or Categories at the bottom of every post or on the sidebar. Options to show Post Date and Excerpts.

Cumulonimbus vs EZ Related Posts Footer Links and Widget