I get regular email updates from CIPA (Christian Independent Publishers Assoc.). I have never used them but the site and updates look well thought out. https://www.publishersweekly.com/pw/by-topic/industry-news/religion/article/78931-association-for-small-christian-pubs-renamed.html talks about this 15year old publishing house. Those who have a completed project note that the marketing takes as much planning, and even more time, than completing the work itself. One marketing and advice site I like the look of is ChristianWritingToday, website at http://www.christianwritingtoday.com/ . they are a marketing site but offer a great deal of free assistance. PTL!