Best long-tail keyword research tools for WordPress

1. Ubersuggest:
- Ubersuggest is a free keyword research tool that provides hundreds of keyword suggestions, including long-tail keywords. It also offers features like search volume, paid difficulty, and SEO difficulty[1].

2. Keywordtool.io:
- Keywordtool.io is a tool that generates long-tail keywords based on a seed keyword. It also provides search volume data for 192 countries and 47,035 locations[2].

3. SEMrush:
- SEMrush is a comprehensive SEO tool that includes a long-tail keyword research feature. It provides detailed information about keywords, including search volume, keyword difficulty, and competition score[3].

4. LongTailPro:
- LongTailPro is a multifaceted SEO research and auditing platform that generates long tail keywords with the most favorable balance between competitiveness and traffic volume. It also provides features like backlink analysis and SERP analysis[3].

5. Answer the Public:
- Answer the Public is a free long-tail keyword research tool that finds common questions around a keyword. It provides a list of long-tail keywords based on user queries[2].

6. Google Auto Suggestion:
- Google Auto Suggestion is a tool that provides long-tail keywords directly from Google. It is free but has a limited number of searches per day[2].

7. WordTracker:
- WordTracker is a popular SEO keyword tool that provides long-tail keywords along with important details like searches, competition, IAAT (keyword in anchor and text), and KEI (keyword effectiveness index)[2].

These tools can help you find the most profitable long-tail keywords for your WordPress website and improve your SEO.