I've added a Niche Laboratory YouTube Channel - check it out.
The first two videos do a deep dive into the paleo diet niche. You might also know this as the neolithic diet, caveman diet and a whole load of other monikers.
I'll reveal long tail keywords, influencers, major competitors, products to help monitise a blog in this niche and a whole load of other stuff.
The video is in two parts:
Building a product-based website? The Product Laboratory will help find you brainstorm product ideas.