The SEO Framework

Search Engine Optimization done simple and effective. A plugin with well thought defaults, you can often just activate it and forget about it, but it still allows you to make tweak title and meta descriptions, XML schema markup, social media tags and so on. Super fast, clean interface.

The SEO Framework screenshot

Extract from WordPress.org

The only feature-complete SEO plugin that follows the white-hat guidelines and rules imposed by WordPress and search engines. Start using proven methods to optimize your website for SEO. Simple, dedicated, extensible, unrestricted, ad-free, and no strings attached. To top it off, this is the fastest full-featured SEO plugin, and it blends right into your WordPress website, without leaving you in the dark.

https://wordpress.org/plugins/autodescription/