I developed a unique software that solves a particular problem. There is interest in the product and sales are ok. But when I approached (at least 10) gurus who speak or write about that topic, offering an affiliate link or just for their opinion. Not one responded. So i am thinking that my email must be wrong or there must be is a specific way to approach them.
Just go for it. When I started out at GoPro we went in and offered free products to 1,000 different influencers. We only got a response from 2. Go for it. If you want, call me and we can discus the exact wording of the message you want to send.