(Hopefully there are ppl on Earth who enjoys finding character names cuz im in agony now. A huge THANKYOU to everyone that is willing help.)
There are 6 characters waiting to be named:
Character A: male, early 20s, musician(for classical musics). Graceful, elegant, pretty looking, a bit shy but caring. Often mistaken for gay but is actually straight.
(considering some modern and elegant boy’s or unisex name for him)
Character B: female, A’s younger sister (3 years apart). Goth girl who’s talented in music, plays bass in a rock band. Pretty and introverted like her brother. Exactly opposite to her brother, she’s a lesbian who often got assumed as straight.
(considering either gothic names that fit her style or contrastive name like Harper Eden Celia)
The rest of characters are in the next post cuz it’s wordy if put all in one
Yes

Ideas for character A:
[name_u]Sasha[/name_u] (or [name_m]Alexander[/name_m] with nn [name_u]Sasha[/name_u] or Sandy)
[name_u]Finn[/name_u]
[name_u]Marlo[/name_u]
[name_m]Jaco[/name_m]
[name_m]Corran[/name_m]
[name_m]Nels[/name_m]
[name_u]Nico[/name_u]
[name_u]Ellis[/name_u]
[name_m]Phillip[/name_m] with nn [name_u]Pip[/name_u], [name_u]Pippin[/name_u]
[name_u]Luca[/name_u]
[name_m]Silas[/name_m]
[name_m]Samuel[/name_m]
[name_m]Joel[/name_m]
[name_u]Jay[/name_u] (maybe as a nn for a J name?)
[name_m]Jerome[/name_m] nn [name_u]Remy[/name_u]?
Character B:
[name_f]Ramona[/name_f]
[name_f]Ravenna[/name_f]
[name_f]Corliss[/name_f]
[name_f]Neve[/name_f]
[name_f]Zara[/name_f]
[name_f]Arla[/name_f]
[name_u]Lennon[/name_u]
[name_f]Bronwen[/name_f], [name_f]Brontë[/name_f]
[name_u]Harlow[/name_u]
[name_m]Rook[/name_m] (nn for [name_f]Rebecca[/name_f], [name_f]Rusalka[/name_f] or Ruzenka?)
[name_f]Rhoswen[/name_f]
Halsley (Hal?)
[name_f]Agnes[/name_f]
[name_f]Romana[/name_f], [name_f]Romina[/name_f]
[name_f]Morven[/name_f]
[name_f]Maeve[/name_f]
A few ideas:
Character A:
[name_m]Felix[/name_m]
[name_m]Sebastian[/name_m]
[name_u]August[/name_u]
[name_m]Stellan[/name_m]
[name_u]Morgan[/name_u]
[name_u]Adrian[/name_u]
[name_u]Remy[/name_u]
[name_u]Finnegan[/name_u]
[name_u]Charlie[/name_u]
[name_u]Miles[/name_u]
[name_m]Oliver[/name_m]
[name_u]Dorian[/name_u]
[name_u]Gabriel[/name_u]
[name_u]Ashton[/name_u]
Character B:
[name_f]Lilith[/name_f]
[name_f]Ursula[/name_f]
[name_u]Raven[/name_u]
[name_f]Alaura[/name_f]
[name_u]Ivy[/name_u]
[name_f]Scarlett[/name_f]
[name_u]Willow[/name_u]
[name_f]Thalia[/name_f]
[name_u]Piper[/name_u]
[name_u]Winter[/name_u]
[name_f]Eve[/name_f]
[name_f]Daisy[/name_f]
[name_f]Poppy[/name_f]
[name_f]Hope[/name_f]
[name_f]Angelina[/name_f]
[name_u]Harmony[/name_u]
[name_f]Darla[/name_f]
Character A: what are his parents like? [name_f]My[/name_f] brain imagines almost hippy parents, probably taised mostly by a single mother who bounces from one guy to another and a distant father with another family. He was probably named something like [name_u]August[/name_u] [name_u]River[/name_u], [name_u]Canyon[/name_u] [name_m]Bende[/name_m] or [name_u]Sequoia[/name_u] [name_u]Rain[/name_u], [name_u]Forest[/name_u] [name_m]Stone[/name_m]. And he might even be self conscious of his name not suiting his personality, maybe even encourahing others to think he might be gay. I want to assume youve got a last name oicked out, but if not i would go with something common but not overused. Maybe even mundain, like [name_u]Lincoln[/name_u], [name_m]Moore[/name_m], [name_f]Lucy[/name_f] etc.
Character B: Since she’s the younger sibling, i’d be tempted to stick to hippy style names because the mom will choose names she likes for a baby being born, not a name the kid likes. But it makes sense that a free hippy woman would raise two kids and allow them to express themselves, ending up with a kid thats goth or maybe one with dreads etc. Boys with long hair or girls who save short…it sort of vibes. Im thinking [name_u]Liberty[/name_u] [name_u]Fern[/name_u] (Libby for short), [name_u]Ivy[/name_u] [name_u]River[/name_u], [name_f]Sunshine[/name_f] Dew, [name_u]Indigo[/name_u] DeLuna.