Wanderer, the verse used the most against transgender people is Lev 22:5.
I did a study on this verse because I was a crossdresser at the time. What needed to be taken into account that the Canaanities ,both men and women, crossdresed during their pagan religious rituals. What God wanted was for the Israelites to be distinct from the culture around them.
Back then, it was forbiden for men to show any feminine traits. Women weren't allowed to demonstrate anything connected to masculinity (wearing armour, control over men both publicly and privately, etc.) Romans 1:26,27 is the new clobber verses these days.
I have responded with the history of when Leviticus 22:5 was written. In Isaiah 56 eunuchs were to be included in partaking of the faith. Previously they were forbidden because they were consider damged and unclean.
I refer to Matthew 19:10-12 when putting transgender folks in a positive light. Jesus by his statement here shows that ALL are welcome into his kingdom. John 3:16 is another verse I use because it was rattling in my brain and spirit during my own transition.