Even major artists with an actual career struggle to have their archive taken care of, and they're lucky to have MA or PhD students to work on their materials
My opinion is that you should take care of your photos as much as possible during your lifetime. If you have something that could be historically significant, donate it with proper documentation. And I cannot stress this enough: prune your materials, sort them, arrange them, and document them. Archivists don't have time to spare to figure out whether something is worth it or not. Also, don't expect any money in return. Your materials are costing them time, not the other way around.
Accept that not everything you've produced will remain. I managed to get a dozen of my father's photos in a proper institution, and that might be all there will ever be. Still, it means that his photos are safe, properly filed, and his bio is properly written.