There are 2 books in the Synneful Spinsters series.
The Synneful Spinsters series does not have a new book coming out soon. The latest book, What's a Duke Got to Do With It (Book 2), was published in January 2023.
The first book in the Synneful Spinsters series, Some Dukes Have All the Luck, was published in January 2022.
The Synneful Spinsters series primarily falls into the Historical Romance genre.