I can recommend Llewellyn’s Complete Book of Predictive Astrology: The Easy Way to Predict Your Future by Kris Brandt Riske. It’s a good read with many good examples. It triggers a dialogue with a reader.
The best predictive book is however Bernadette Brady’s Predictive Astrology: The Eagle and the Lark
A truly revealing book for me was Identifying Planetary Triggers: Astrological Techniques for Predictionby Celeste Teal. This book is written in a clear and concise way so that the reader can easily understand and follow.