Niche selection affects how an affiliate site is built and what content gets written. A narrow niche means focusing on one type of product or one specific audience, like camping gear or budget laptops. A broader niche covers more product types, which can bring more traffic but might make it harder to build trust. Some people say narrow niches help establish authority faster because the site becomes known for one thing. Others prefer variety to avoid losing traffic if one product category stops working. What approach works better for new affiliate sites?