If the model is looking for a photographer, they should pay the photographer. If the photographer is looking for a model, they pay the model. Often times they both can benefit if the photos are going to be used by both and not for another company.
Once you have 10k followers, Instagram will make it easier for you to get people to your website via Stories with the swipe up to link feature. Swipe up is the only way to get a direct link from your Instagram to your other web properties. And, it’s available in STORIES, if you have 10k followers.