Reddit mentions of Between Husband and Wife: Gospel Perspectives on Marital Intimacy

When my wife and I were both still TBM this booked helped a lot.

https://www.amazon.com/Between-Husband-Wife-Perspectives-Intimacy/dp/1680476548/ref=nodl_

It’s written by a TBM sex therapist. She talks (positively) about toys and oral sex. Also discusses making sure each other’s needs are met and how few women are able to have their needs met through intercourse alone.

"Between Husband And Wife" is also a great book on sexual intimacy within the gospel context.

https://www.amazon.com/Between-Husband-Wife-Perspectives-Intimacy/dp/1680476548

Sure. My top three would be these:

Sexual Wholeness in Marriage https://www.amazon.com/dp/0981957641/ref=cm_sw_r_cp_apa_i_B8SDCbSKZGE3Z

What Your Parents Didn't Tell You about Sex: An LDS Guide to Sexual Intimacy https://www.amazon.com/dp/1508608873/ref=cm_sw_r_cp_apa_i_RZSDCbSS6V2V4

And They Were Not Ashamed: Strengthening Marriage through Sexual Fulfillment https://www.amazon.com/dp/1587830345/ref=cm_sw_r_cp_apa_i_R1SDCbHVJAKXZ

But the best known book on the subject is this:
Between Husband and Wife: Gospel Perspectives on Marital Intimacy https://www.amazon.com/dp/1680476548/ref=cm_sw_r_cp_apa_i_h7SDCbRA5JWKB

Depending on what your issues are, you might find this book helpful:

https://www.amazon.com/They-Were-Not-Ashamed-Strengthening/dp/1587830345

This is another good one:

https://www.amazon.com/Between-Husband-Wife-Perspectives-Intimacy/dp/1680476548/

I haven't read this one, but it was written by the prophet's wife:

https://www.amazon.com/Purity-Passion-Spiritual-Intimacy-Strengthen/dp/1590384105/