SEO starts with access and clarity. Make sure important pages return a successful response, are linked from the site, have one clear canonical URL, and are included in an XML sitemap.
Give every page a useful title and description written for a person, not a keyword counter. Use one descriptive heading, meaningful subheadings, and language that matches the questions your customers actually ask.
Then look at the experience. A fast, readable mobile page with clear navigation and helpful content gives both visitors and search engines a stronger signal than a large pile of thin pages.
Once those foundations are sound, content and local search work compound over time. Until then, publishing more usually creates more places for the same problems to hide.