I’m looking to be more spiritual. Books?

I don’t every see myself being kosher. Or even being too strict. I like oysters too much.

But, I still find myself attached to Judaism even though I’m fairly agnostic and before atheist being a fan of Richard Dawkins.

My family has a strong connection to Judaism. Are there good books to learn to be more spiritual or even knowledgable , as I forget so much?

Any recommendations?