Everyone will read:
Francine Rivers  Redeeming Love

And at least one other book by an author from the list below:
Terri Blackstock
Irene Brand
T. Davis Bunn
Sharon Foster
Robin Gunn
Robin Lee Hatcher
Dee Henderson
Karen Kingsbury
Beverly Lewis
Shari MacDonald
Lori Wick

Or, if you wish to get adventuresome, try reading by publisher:
Barbour Books
Bethany House
Harvest House
Multnomah
Steeple Hill (Harlequin)
Tyndale House
Zondervan

As you are reading:
Think about which subgenre might align most effectively with your books and compare them to the other titles you have already read (for example is it also historical or contemporary, suspense, paranormal, etc.?)  Also consider if your books are like any other literature you read.

If you find that you have accidentally chosen a particularly dreadful one, try to pick up another to compare to it (hopefully with better success!)

Try to find out a little bit about the second author you chose – be ready to report about other books s/he has written.