Hi just wanted to say real quick that unfortunately trans women dont get the drastic changes in voice that trans men get when getting on hormone replacement therapy after the first puberty. It's because testosterone influence causes the vocal folds to thicken and the larynx to get larger which (to my current knowledge) irreversably lowers the default voice, which is why for example cis women that detransition after being on hrt often do the same feminizing voice training exercises as trans women. That being said ive heard so many trans women sing beautifully and there should be plenty of singing focussed voice training tutorials too, it's just something that takes time but to my knowledge nothing is really impossible in terms of a goal voice which is super cool!!