The most important aspects of good SEO marketing is finding keywords, although it is important to know that keywords can no longer be used the way they used to be to trick search engines, these days your keywords need to be used in legitimate terms and phrases that can generate traffic to your website. Making the content (and code) of your site friendly to search engines along with linking to other sites that help prove you are real or in the category you should be in (similar sites, vendor sites, supporting articles) and making parts of your site have original aspects so you stand out just a bit.
Search Engine Optimization is an is an often misunderstood phrase and strategy. But in general these days its all about making Google (and yes, those other guys, lol) be able to read your website like a real person would. No short-cuts, no tricks, no BS. So whether you want to call it AI (Artificial Intelligence) or Algorithms, and it is a bit of both, you need to write your website pages and post articles to read normal as the software today actually reads you website page like a real human. But the software still needs a little help form code on your site. You need to follow a system, a hierarchy, that Google has set in place and all the other search engines have adopted (since Google is by far the most widely used search engine). We’ll get into this more but using your keywords in page and paragraph titles called H-Tags from 1 to 6 and in order of importance is one of the big steps. These tags in the code of your paragraphs is what tells the search engine algorithms “look here” and that this is what your content is about.
So whenever you think you have written your website pages as best as you can you need to do the next step (or have us do it ;-). But in general you need to use a bunch of different tools to register your site or articles as you write them so the search engines “index” them and then they visit your site and look for those H-Tags as well as all the text in your pages and articles.
If you want to understand some of these steps a bit more, read up at the links below.