Guide

1. Google Search your category/niche.

2. Find a competitor that offers the same services that you do and copy their domain name.

3. Go to Ahrefs>Site Explorer

4. Search for the domain you copied. (your competitor's domain)

5. You can see their Ahrefs stats like Domain Rating, Backlinks, Traffic etc.

6. You can see the number of their organic keywords here. Click on it.

7. These are your competitor's keywords.

8. Click on position to sort the keywords based on their ranking on Google. These are their top ranking keywords.

9. Click on Traffic to sort the keywords based on their page traffic. These keywords have driven the most traffic to their website.

10. Hit the Export button

11. Export it as CSV so you can select the most relevant keywords for your product/service.