Thanks. I have the Corbin book on Jung and Buddhism currently on order.

Kingsley is excellent. His (sort of) autobiography is also worth a read - A Book of Life.

The most accessible of Jung's books are: Memories, Dreams, Reflections; The Undiscovered Self; Modern Man in Search of a Soul; Man and His Symbols.

The idea of synchronicity is important and extraordinary, but the book is a bit disappointing, apart from the section where he traces his antecedents. I wrote about that here: https://graham-pemberton.medium.com/archetypes-and-the-collective-unconscious-jung-and-synchronicity-e18fd373cfb5

The other books are somewhat heavier and more technical, therefore require more effort.

Also worth reading, if you haven't done so already, are the books of Marie-Louise von Franz, Jung's most significant follower.