Have you thought about publishing your photography yourself?
If you’ve not heard of Kickstarter, it’s a website where you can pitch an idea and raise money to fund it. Typically, the pitcher offers the final product in return for backing the idea. If the project doesn’t get enough pledges to fund the idea, you don’t pay.
There have been a number of photography projects that have got off the ground using this method, including The American Drive-in Movie Theater by Carl Weese, a project to fund a road trip across America to document the last remaining drive-in cinemas before they disappear.