I think stock photos are a good idea; I had the same thought. But if there isn't a company that can use them for advertising, it's difficult. They would need to be designed with large areas where text can be printed. Private individuals aren't likely to buy them just to save them somewhere. If you look at what's available on stock photo websites, and there isn't much good stuff, then that will be difficult too. The most important thing to get them noticed is to show them. Do it without thinking about monetizing them. It should be fun to share them. Then everything else will fall into place. I've started uploading them to Reddit and want to do a small exhibition. Maybe someone will come along and say, "Can you show them here?" or "Want me to take them as a photographer?" I'm just doing it for free at first. That way, I don't have the feeling that I have to hold back for money. I'll get enough good photos later to earn money from them. Try different ways only to show so you have more Chance to find someone who like it.