My for sure trans dragons are Abathur and Kali!
Abathur began life as a nocturne, and was a bit different from the other nocturnes in his birth clan because he was always mimicking male dragons more than the female ones they expected him to. Abathur loves alchemy and idolizes Baldwin, and transforming into a Bogsneak like him coincided with his decision to transition socially as well. Eventually he started his own clan so that he would be surrounded by dragons who only knew him by the identity he introduced himself as.
Abathur's currently embroiled in a star-crossed lovers situation with
Androto, who belongs to a very secretive and elitist clan. If anyone found out about their son
Eos things would go very badly for Androto indeed.
I don't have Kali's lore figured out completely yet, but I know she's a time-traveling, demon-stomping warrior woman whose lover
Asura is undead and quite cheerful about it. Don't ask how they conceived
Baphomet when one parent isn't even alive. Some questions are better left unanswered.
Aaaaand then there's Miller
Miller is a fandragon for the character from The Expanse. The character is male, the dragon happens to be female, and I don't know what's going on here genderwise. It's fine. Miller has much more important things to worry about these days.