Here are three types of SEO strategies:
On-page SEO: This SEO focuses on the content on the webpage and how to optimize that content so that it helps to improve the ranking of the website for specific keywords within search engine results pages.
Off-page SEO: This SEO focuses on the links that are directing to the website in order to improve the rankings of the website’s search engine and gain organic traffic in search engines. On-page SEO makes sure that your website comprises a high level of expertise, authoritativeness, and trustworthiness.
Technical SEO: This SEO mainly focus on the architecture of the website, observing the backend of that website to understand how the webpages are set up. Google equally cares about the code of a website and its content, making this specialty is essential to the search engine ranking of the website.
You can enroll in this SEO Training Course by Intellipaat to learn SEO.
Also, watch this video on SEO strategy: