While your professional editor finalizes your book manuscript, begin seeking possible publishers. Taking one afternoon to do the following simple steps will save you days and weeks of scattershot effort.
1. Find books similar to yours in your personal library, public library and bookstore, and write down the names of the publishers. Don't quit until you have at least 20 names (there are so many publishers nowadays!!).
2. Take this list and find each publisher's website to see whether the publisher is still in business, has a current catalog, and, under "Writers Guidelines" or "Submissions," read about what kinds of books or authors they are looking for; and YOU decide whether it looks like a publisher YOU would like to work with. Make a note of your best finds.
3. While you are on "Writers Guidelines," check whether the firm likes to correspond 1) by snail mail or 2) by email; and whether your first contact should be with a) a query letter b) a query letter with sample chapters, synopsis, or table of contents ("T of C"), or something else, or c) if they want you to send the full manuscript. Write down the editor's full name so you will have someone to address your correspondence to.
4. Having now narrowed your list of possible publishers, Google each to find any news, reports, reviews, complaints, or other material confirming the reputation or economic health of this publisher.
5. Browse amazon.com or the shelves for recent books similar to yours. Make note of any books strongly resembling your own. These are "competing titles," and your publisher will want to know how your book differs from the books already available. That will be an important selling point.