How do i optimize your site for advanced serp features without a big budget?

most of it is formatting, which costs nothing. for featured snippets, put the question as a heading and answer it in 40-60 words straight underneath, then go into detail. do the same for the questions you see in the people also ask box for your term. product and review schema if you sell things, organization schema for the brand side. images want descriptive file names and alt text, and the local pack is just a free business profile. i'd skip FAQ and how-to schema for this, google barely shows those rich results anymore. search your main terms and look at which features actually appear before you chase any of them.