Source: http://smallbiztrends.com/2016/05/keyword-research-tools-and-tactics.html
Making use of keywords is important in order to properly target your niche. However, with the constant updates made by search engines, generating leads with the use of keywords can be affected. So, the best option you can do is to continuously search for keywords. Luckily, there are tools you can use to accommodate your needs.
Research keyword tools
SERPstat – SERPstat works by taking your info and establishing up to hundreds of unique long tails for you to research and try. It also has a very extensive free version which you can use without even signing up.
Page Comparison – Page Comparison is a free and easy tool that compares two or more pages. The most useful part of the analysis is extracted keyword phrases and how they are used on each page.
MyBlogU – MyBlogU is a crowdsourcing content site that allows groups of people to collaborate for singular pieces of content.
Cyfe – Cyfe might be the most extensive, low cost business platform on the Web since it allows you to create custom widgets that monitor everything you could hope for, from sales to analytics to social profiles and more.
Hashtagify – Hashtagify can help you build trending content around popular hashtags to get additional visibility. In addition, it also helps you create social media content inspiration.
Redditlist – Redditlist lets you see popular topics, trending Subreddits and work for generic viral content inspiration.