im looking for something like Rebirth of the Wolfish Silkpants Bottom. Doesn’t have to be BL Either something like she/he (MC) gets adopted in the family or is an illegitimate child or a child the family has been searching for for a long time. Better if he/she is reborn He/she was ungrateful and was being used in the last life or something and in the second he/she gets they get along with their family especially the big brother or the powerful cousin
It Seems That I’ve Slipped Into a Different World. Also, My Gender Has Changed. - What about this? MC gets magically transported to the modern world shortly after being born. After 18 years of searching her original parents finally find a way to summon her back. Also, it's completed.
You can try Little terrified bun 小怂包[重生] In his last life, the little terrified bun Wei Jing, to get his father's attention, tried to fight his older brother that always spoiled him for the family's fortune. in the end, he got kicked out of the house by his father, got into a car accident and died. In this life time, he decided to obediently be a good child, not kicking up a fuss or whining/crying, not being wilfull again, and not trying to snatch the family business from his older brother again. The best would be, if he could distance himself from all other people. Reborn ML (Wei Zhe) sees his little sweet pancake brother distancing himself more and more. "Hehe, you want to leave, but have you asked my opinion?"
- Reborn as a good child - Perfect Secret Love: The Bad New Wife is a Little Sweet (qidian) - Dominion’s End
Uhhh... yes, I forgot I read this MTL, sorry about that. Here are some currently being translated/available on NU that are somewhat similar QWTFOD: Xue Zi Xuan Side Story - If you've read Quickly Wear the Face of the Devil, this is a side story from the author, MC is still ZYS, but ML is replaced by rebirth Xue Zi Xuan (the pianist big brother on the twins arc), this time he tries to be good to MC to atone for what he did before. Reborn as a Good Child - MC is reborn, he was used as a cannonfodder in his last life so the enemy can bring down his family. This time, he behaves himself so that he won't bring about their family ruin. Knowing that he used to be willful, MC's whole family + ML thinks that MC must've suffered that's why he changed and they all feel distressed for him so they try to pamper him more/find out the cause. The Wife is First - This is set on ancient times, ML was reborn. He tried to fight with his big brother for the throne last time, this time he decides to support his big brother. The focus is more on atoning/pampering his male wife who stayed with him despite all in the last life. Sorry, it's all BL ^^', for BG, I can only think of Kenkyo, Kenjitsu o Motto ni Ikite Orimasu, not reborn though. MC reincarnated as a villainess in a manga, focus is more on MC's school life. But she gets along with her big brother very well (her big bro is also a siscon XD)
The arc with the pianist guy in goce of devil and Reborn as a good child. it was already recommended...