Julio Potier

Add a META tag Author for SEO reasons. Author name can be automatic on each post/page or set to a choosen name.

BAW Google Author

Sergio

Removes category base from your category permalinks (optional). By default is enabled. 
Removes parents categories from your category permalinks (optional). 
Removes tag base from your tag permalinks (optional).
The three options above are optional and generate their own rewrite rules.
Compatible with WPML Plugin and WordPress Multisite.
Read the <a href="https://wordpress.org/plugins/wp-no-base-permalink/faq/" rel="ugc">FAQ</a> before use.

WP No Base Permalink

It solves the main issue with category permalinks. Simple and effective.

Does the job!

Removes category base or parents categories or tag base from your permalinks. Compatible with WPML Plugin and WordPress Multisite.

BAW Google Author vs WP No Base Permalink