SEO Content Research

Run a free website SEO audit and optimize site pages with WebSite Auditor!

On-page auditing, technical SEO guides, and a reporting tool in one app? It's not a fantasy - it's WebSite Auditor software, a collection of site audit tools for webmasters, SEO agencies, and business owners. Download the SEO audit tool for free; run the website analyzer and fix issues to increase online traffic to your website and deliver a better service to your customers.

www.link-assistant.com

freemium software model and their website auditor has a great content editor tool

SEMrush Content Marketing Platform

How do you provide value to your audience through a unique content experience? How do you develop or improve your content strategy based on data? Step by Step Towards a Bright Content Future

www.semrush.com

content marketing module is great (7 day trial), polished topic analysis that includes social shares/backlinks which is the content marketer's KPIs for success

Choosing the Right Keywords To Use | Google Ads

Unsure of what keywords to target? Identify the most relevant keywords for your brand with Google's keyword research tool, the Google Keyword Planner.

ads.google.com

can be used for free (just sign up for a free Google ads account) to find search volumes, but these can be useless unless you know/understand the search intent of the keywords

Search listening tool for market, customer & content research - AnswerThePublic

Use our free tool to get instant, raw search insights, direct from the minds of your customers. Upgrade to a paid plan to monitor for new ways that people talk & ask questions about your brand, product or topic.

answerthepublic.com

Downside is it doesn't indicate the search volume in any way to help you prioritise