After Health and Wealth, another evergreen niche is “Relationships.” We are all connected (be it parents, kids, boss, co-workers), and millions of searches happen around this topic every day.
Here is some advice: you are not going to get anything useful out of your affiliate website for the next three to six months. Any site that's got less than a hundred pieces of content, including blog posts and videos, can barely make an impact. The best course of action is to create, create, and create.

The fastest way to grow your email list is by offering a lead magnet (something users get in exchange for giving you their email address). This might be a checklist, a free course, or any number of things that your audience finds useful and valuable. Once you have their info, you can send subscribers valuable content along with promotional emails. To get the most from your email marketing, you'll probably want to check out our picks for the top email marketing platforms that will make the entire process easy.
These products that sell well are also in very informative, helpful posts. The more helpful you are, the more trustworthy you’ll seem, and the more trustworthy you are, the more likely someone will buy from you!