I collected 100 rejection slips for my first nine novels before I made my first sale. But, when I was rejected, I got mad, not discouraged. The first places to start are your favorite bookstores, and your local library. Seek out books that fit the type you have written, and copy the publisher's name and address from the copyright page. These books are updated every year, so ask for the latest edition.
Magazines can be a great help to beginning romance writers, too.
115 Houston, TX 77014 for information about membership, which includes a subscription to their magazine, Romance Writers Report , and info about local RWA writers' groups. There are many other resources for writers on-line. Another is Rendevous Online's Author, Agent, and Publisher links . Most of all, you must be dedicated and determined. Because I am so busy with my own writing schedule, I do not have the time to accept other manuscripts for critiquing.