Head to the KWFinder and add your seed keyword.
As a monthly/yearly subscriber, you’ll get a boosted version of the KWFinder, fetching more long-tail keyword ideas. Learn more here.

Advanced Options
Toggle the Advanced button to see advanced options.

Include words: If you only want keywords that include at least one of the words you specify in this field.
Exclude words: If you want to exclude keywords containing specific words.
Max Authority: All websites below this threshold will be considered weak spots and will be marked with a green fruit icon.
By default, the threshold is set to a DA of 20, but you can define it as you prefer. You can also add your website to include websites weaker than yours in the weak spots category.
Extra parameters.
Country Search Volume: Enable it if you prefer to have search volume estimates specific to the country you’re targeting. By leaving it unchecked, you’ll get the global search volume.
Desktop SERP: Enable if you prefer to have the SERP data scrapped from Desktop hardware instead of a mobile device. Note that most of the traffic nowadays comes from mobile devices.
Extract PAA queries: Enable if you want to have People Also Ask queries extracted during keyword analysis. Check out or tutorial video on How To Get Keyword Ideas For Google’s People Also Ask.
Extract Related queries: Same but for Related queries.
Old analyzed keywords: You may have some keyword overlap between reports. To save credits, you can enable this option.
It will retrieve keyword data analyzed up to 3 months ago.
Customize weak spots: You may want to customize weak spots, even if their DA is above the defined threshold. Purple fruit icons will represent these customized weak spots in your reports.