Question: I'm looking for a tool that helps me find relevant long-tail keywords for my content strategy.

For finding long-tail keywords related to a search query, Keyword Insights is a top pick. This AI-powered tool lets you generate and group keywords, determine search intent, and create content briefs. It includes tools for keyword discovery, clustering, search intent analysis, and content brief generation, making it a good choice for content marketers, SEO professionals and agencies that want to automate some of their workflow and get more out of their content.

Another high-powered option is Nichely. It uses AI to analyze topics and keywords, producing a rich topical map and long-tail keywords. With tools for discovering topics, researching keywords, and examining volume and competition data, Nichely lets you create a strong topical cluster and map. It's geared for content producers and operators of niche sites who want to tap into AI technology like OpenAI's GPT3 for contextual keyword generation and SERP analysis.

seospark is another powerful tool for finding long-tail and semantically related keywords. It's got a lot of SEO data and can perform a variety of tasks like finding ranked keywords, keyword gaps and content cannibalization. With a big database and support for multiple languages, seospark can help you refine your content and improve your website's search engine ranking, making it good for individuals and businesses.

For a full-featured SEO keyword research tool, Rankify is a good choice. It lets you find semantically related keywords by entering seed keywords or business descriptions. With tools like search volume, keyword difficulty and strong security protections, Rankify is geared for SEO agencies, freelancers and enterprise teams that want to speed up keyword research and get more out of their SEO work with better keyword suggestions.