One way would be to use your Clubber tab grid, sort the handbooks. Click the Book Name header, this sorts the same books together. Look at the completion percentages. This will give you an idea how soon a clubber needs a new book.
**This may not be the best option IF the New Year Setup has been run and new books assigned)
Another option: Using the Current Handbook Status report and select Quick View report type, select club, and a high % to show clubbers close to finishing. This can be complex report if you have large club and choose a low %.