SEO writing techniques? Yes. It might be 2018, but content and search engine optimization still go hand in hand. What’s the point of high quality writing that ends up on page 40 of Google’s search results? Nobody will see it. Likewise, if your material isn’t worth reading and does not serve its purpose, your page one rankings aren’t going to do much for you.
As an online writer or marketer, the key is to strike the right balance; create quality content that people want to read and search engines want to index. Do that right and you are bound to taste success on the web.