At Redeemer our staff has been reading and discussing Mark Yarhouse's Understanding Sexual Identity: A Resource for Youth Ministry. It's excellent.
I just picked up Yarhouse's new book Sexual Identity & Faith: Helping Clients Find Congruence. It gets great reviews.
I also recommend Yarhouse's Understanding Gender Dysphoria: Navigating Transgender Issues in a Changing Culture.
Here are two slides from Understanding Sexual Identity, on unhelpful and helpful declarations (thoughts) re. sexuality.