When you are an artist, you have a good advantage to mint NFTs because since you can draw portraits of human. It's definitely going to be an easy task for photographers. Opensea is a site where NFts are created and also exchange. Opensea is good and reliable for investors who are into NFTs development. Photographers can convert images into NFTs and trust me, it will generate profits for them since they are in possession of lots of images which can be convertable.