Years ago you would write a story then hawk it around the publishers and you would find one who wanted to make it into a saleable book ie edit, design and produce a finished article, the publisher would earn his ‘cut’.
Today you write a book, you edit it, you get the graphics, you do the design and the publisher doesn’t earn his cut. Why do publishers exist? Certainly not for my benefit. I could publish my own book, but to do that one needs money.
However there is an online system where if you do all the work they will print on demand. I think I might try this avenue.