The best way to optimize your WordPress Website for Organic Search (SEO) on Google is to use a plug-in called Yoast SEO.
Yoast gives WordPress non-technical content managers the ability to add SEO Titles (also known as Search Engine Titles), Meta Descriptions to each page and score them against focus keywords. Yoast makes suggestions to the WordPress admin on how to improve the SEO optimization of each page, post and custom post type.
Yoast also creates an XML sitemap for all WordPress sites, that can easily be submitted to Google Search Console and Bing Webmaster Tools. Speaking of those platforms, Yoast SEO also gives content mangers the ability to add the code needed to verify your website on each platform.
Yoast has other features like Social Media open graph settings and even Schema, which I explain in this video.
There's also a paid extension for Local SEO.
Paul Hickey, Founder / CEO / Lead Strategist at Data Driven Design, LLC and founder of The Voice Event, and The Voice Designer, has created and grown businesses via digital strategy and internet marketing for more than 15 years. His sweet spot is using analytics to design and build websites and grow the audience and revenue of businesses via SEO/Blogging, Google Adwords, Bing Ads, Facebook and Instagram Ads, Social Media Content Marketing, Email Marketing and most recently, Voice App Design and Development – Alexa Skills and Google Actions. The part that he’s most passionate about is quantifying next marketing actions based on real data.