Plr online dating
Go to Enter your niche into the search bar and hit enter.
A lot of these are fairly targeted niches themselves but you can find even deeper sub-niches by clicking on them. Then look at which categories the blog is split up into.
I used this trick to find out more about beekeeping for my Niche Hack report.
Look at the different niches Wiki reveals to us on the search result page.
Go to Enter your “weight loss for women” and Google suggest instantly suggests some sub niches for you.
You can take it one step further and use Uber Suggest which scrapes the Google Suggest feature based on your keyword and gives you EVERYTHING people have searched for.