Unrelated: If you want elemental check out the YA book Legendborn. The author used very elementally evocative language when describing the main characters emotions. I really loved it.
It's not out yet, but based on your "loved" books you might like Legendborn by Tracy Deonn! It's being compared to City of Bones. I got an ARC and the story was phenomenal - I loved it so much I pre-ordered so I can have a finished copy for my shelf. It's an original take on a king arthur retelling with loads of character growth and a great magic system, and I already can't wait for the second in the series: https://www.amazon.com/Tracy-Deonn/dp/1534441603/
"The Dark Is Rising" Sequence by Susan Cooper. Fantastic Fantasy Series set in the UK - England And Wales, and tied up with Arthurian Legend.
I hear there is a terrible movie version of the first book. I have not watched it because I don't want to ruin a great series I love.
Just thought I'd throw this in, Here Lies Arthur. Its a good read that's not exactly about a trans guy, but is in the vein of ftm. Can't say more without spoiling. If your into fantasy, it's a great retelling of the Arthurian tales with a fun twist. Edited: for Amazon link
I absolutely LOVE the Harry Potter series. And Severus Snape is my favorite character of the lot, so I was definitely teary when I read that part.
Since they never found his body, I choose to believe that a Potions Master would've taken something to allow him to survive somehow, and simply disappeared from the wizarding world after the war. He deserved to have a peaceful life after that.
Edit: I enjoyed the "The Dark is Rising" series.
In a battle between humans and mystics, Kala is torn between the family who raised her and those who left her behind.
Growing up under the care of the King’s most honored soldiers; Kala believed that the magical creatures her people had conquered were responsible for the death of her parents. Until she is captured defending her property,and an elf named Azlyn comes to her rescue. His parting words reveal that her mother was part of a rebellion seeking to unite their people. Desperate to learn more, Kala pursues Azlyn to find out more and their friendship grows into romance.
Conflicted by her love for Azlyn and her loyalty to the man who raised her, Kala is oblivious to the fact that she has been closely watched. As her people prepare for war against the mystic races, Kala’s indecision threatens the lives of those she loves.
Ring of Fire is available free on Kindle Unlimited (or for 2.99 for non-subscribers)
Well, I always thought Gerald Morris's Squire's Tale was great as a kid. It puts a spin on the classic King Arther's stories, and there is humor (within the first 5 minutes of reading you get to read about a knight being beaten with a soup pot). So he may enjoy something like that, action and comedy.
Harry Potter?
Also <strong><em>The Dark Is Rising</em></strong> by Susan Cooper was hugely successful in my home as a kid.
A dream of Eagles Cycle/Camulod chronicles (Canadian/American names), roman colonized Britannia, over many generations, leads into the founding of Camelot. start here:
http://www.amazon.ca/Skystone-Dream-Eagles-Book/dp/0613176502
(also he is a local author for me :D love my signed first editions ^^)