My experience so far, Jean, is that you may be lucky in finding a publisher who will take your work and publish it. However there are those out there who will charge lots to get your book designed, laid out, printed and maybe put it on a website for selling.
Have you tried the normal route of sending your manuscript to various established publishers in the hope they will publish it for you? You can get a list by keying in publishers and follow through on hte list.
Your other alternative is to find someone who will edit your manuscript and give your feedback about how it looks, reads, etc. Then transfer it into an e-format book for Kindle for example and load it onto Kindle Direct Publishing for selling on Amazon.com.
To market your book yourself then, hold a launch party where you invite family and friends (many) to talk about your Ebook, which they can download onto their PCs, iphones, ipads, androids. Some take Kindle, some do not, but if they know about how their phones work, they will know all that.
You may want to transfer your manuscript into ePub also - another format for downloading. The formats for books and downloading are usually called ePub and Mobi(Kindle).
Then it's just a question of going out to libraries or reading groups and telling them all about your writing and trying to convince them to dowload your eBook onto their phones and ipads and PCs.
But I would stay away from the so called publishers who want large sums to do what you can do as an eBook.
Good luck, anyway.