These come in the form of “Product A vs. Product B” or “Service A vs. Service B” articles. In some cases you may even have three instead of two. The key here is to focus on the very specific similarities and differences between the two. Someone looking at this type of article wants an answer. Even if it’s along the lines of both being great, but one slightly better overall while another option is slightly better for a very specific narrow type of use.
Most affiliate marketers fail to make any money because they focus ONLY on the sales, not serving their audience.

Affiliate marketing is a proper long-term business that's built on relationships, value, and consistent quality.
Every business's online goal is to be easily recognized by as many potential buyers as possible. As affiliates drive more traffic to your website, they increase awareness of your brand and its reach. Because affiliates earn a share of your revenue, they have a vested interest in your success, are loyal brand advocates, and help build trust with potential customers.