Content that converts answers a purchase decision: «is X worth it?», «X or Y?», «best deal on X». That content captures people who already decided to buy and just want confirmation — your link is the natural answer.
Formats that work
Honest reviews: pros, cons and who should NOT buy it. Honesty converts better than hype.
«X vs Y» comparisons: the reader is one step from buying.
Coupon/deal pages: PartnersMy promotions give you fresh material.
«How I use it» tutorials: show the product in action with your link in the first paragraph.
Disclosure is not optional
Always include a line like «This article contains affiliate links; if you buy through them, I earn a commission at no extra cost to you». In Spain advertising law requires it and the FTC recommends it worldwide. Bonus: it converts BETTER because it builds trust.