If you’re optimizing your content using just one keyword phrase, then you’re doing on-page SEO the wrong way.

Here’s a fact:

You can actually target multiple keywords for a single post!

Therefore, you need to find other keywords related to your primary one and mention them in your content.

The question now is:

How do I find related keywords that I can use?

What we want to look for, to be precise, are LSI (latent semantic indexing) keywords.

As mentioned in this post, LSI keywords help boost your page’s SEO performance and generate more traffic to your site.

Obviously, you can’t pull these keywords out of thin air. You need a tool to help assist you in finding the best LSI keywords for you.

Lucky for you, here are some of the best LSI tools to find high-ranking keywords for your content.

1. BlogPatcher

Blogpatcher analyzes your site just like a search engine. It suggests solutions to SEO errors, such as keywords, content, or topics you can use on your next post. This helps your site rank higher and get more visitors.

Bloggers and SEO experts will find a lot to work with this tool. After running a page analysis, it shows the aggregate score of each factor for your review. You can then optimize the page by resolving the issue found by Blogpatcher.


More importantly, it unearths multiple LSI keywords for your published posts so you can optimize them further.

blogpatcher lsi keywords

You’ll also find its competitor analysts feature useful as you can use other’s high-ranking keywords on your content.

2. Niche Laboratory

Niche Laboratory provides you keywords, web pages, article ideas, niches, and competitor analysis. It’s useful for improving content creation as it presents 150 LSI keywords per query. You can even get more by registering to the Pro version.

niche laboratory

Though the list can’t be exported and sorted, it can be copy-pasted to another file. You won’t have a hard time tinkering with this tool because the keywords’ rank and relevance are shown automatically.

3. KWFinder

KWFinder is another effective keyword suggestion tool. It generates long tail keywords and main keywords helping you to come up with more keywords. Its free version generates around 50 queries per day, but you can get more if you upgrade to the Pro version.

kw finder

You can also filter keywords according to language, country, or the number of words. Keyword lists can easily be exported as CSV file. It’s the tool you need if you’re still starting with your content creation or if you’re looking for new topics to increase search volume.

You can even generate questions that have keyword SEO difficulty scores!

4. Ultimate Keyword Hunter

Ultimate Keyword Hunter is a free LSI keyword tool that needs to be downloaded and installed first before using. It’s only available on Windows too. This isn’t for beginners as it’s more complicated to use. Fortunately, there’re tutorials on their website.

ultimate keyword hunter

Its complicatedness also comes with a few benefits such as its feature-rich interface. It can analyze up to 50 websites based on your chosen keyword. You can also set the number of pages you’d want to be analyzed from 10 to 50, as well as choose the max number of words every keyword.

Filter texts based on your preference, or perhaps indicate unused LSI keywords. This free keyword tool is ideal for advanced users and those wanting extra features.

5. Keyword Tool

Keyword Tool is one of the most popular keyword generators out there because of its simplicity and efficiency in finding keywords. Its Autocomplete feature generates over 500 keyword suggestions from different search engines.

keyword tool

You can also set it to a specific country or platform. Search query numbers are unlimited and you can export lists as well as filter out keywords using its negative keyword function.


No doubt you’ll get the right keywords whether you choose one tool or combine our top picks. All of them are proven effective in improving ranking and conversion.

However, there’s more to content optimization than just LSI keywords.

Spend time formulating relevant titles and descriptions. Use the right hashtags and make your content as relevant as possible to your audience. Also, perform SEO audit regularly to find and solve errors. You want to find opportunities to boost ranking.

The LSI tools above don’t only help your SEO, but your email marketing and lead generation as well. And once you’re done with your content, try split testing it to make it more effective. Having the most optimized content doesn’t happen overnight.

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