I ran across a series of historical romances, of which 13 which are currently
free at Amazon.
The series is called the "Mail Order Bride" series. The author of all of the books is Faye Sonja.
If you are only interested in trashy romance novels, you will be disappointed in these, I think: they state, and
emphasize, that they are
clean ones. I don't know if there is any religious overtone or if there are any religious allusions, references, or such like in these books, however.
They are published by a company called Speedy Publishing, which seems to me to have characteristics of both a traditional and a self-publishing publisher. However, generally speaking, the books in this series are highly rated. Too, the thought occurs to me that many currently popular authors may have started out going the self-publishing route. So, you may not want to dismiss these books simply because of them being self-published.
Here is
a link to all of the Mail Order Bride series books published by Speedy Publishing. The first 13 are
free.