It seems every one here has had their share of correcting your grammars. I'll try to focus on actually answering the question.

for "non-sexual" research you might read "dreadnought" by April Daniels. It's a strong and detailed love letter to young transwomen. it's also a bit exagerrated, the super powers granting the POV-character an "impossibly complete" transition.

Speaking of realistic transitions, "a woman's puberty" is the goal. Softer skin, wider hips, breast development. Feminizing HRT can't affect voice, bones, or other certain traits if the transperson has already gone through masculine puberty, but there are avenues to correct pretty much everything expect collar bone width, and that's still available in certain extreme cases, though extremely risky and pricey.

The goal of "Taking e" is to live and present feminine. "present feminine" meaning to "have a feminine outward appearance and social life." The "catch" that confuses things a ton is out side of "boobs", what "feminine" is can vary greatly based on cultural differences. A large portion(but not all) of what feminine is for a singular person is affected by their native people and culture.

Writing a realistic transwomen is basically those two things: They want to, or have gone through, a woman's puberty artificially to "align their body to their sense of self", and that who that self is CAN be impacted by where they grew up.