The First Book by Mr. Xianyu

Torture Tang San, Beat Up the Master, Join the Consecration Hall, and Become Its Beloved Darling

The protagonist should be powerful and seize Tang San's opportunities along the way. If there's a female lead, she mustn't be a pushover: she should kill whoever needs killing. The divine position should preferably be the Asura God. If there's a male lead, no harem, and preferably a twin martial soul. No more than three martial souls, or it won't be any fun.

Douluo, Spirit Hall, Torturing Tang San, Qian Renxue, Got It?

Douluo, Female Characters Only

Are there any stories where the female lead's martial soul is a qin or guzheng?

Torment Tang San, Take Down Yu Xiaogang, God-Level Martial Soul, Start at Spirit Hall

Douluo: The Protagonist Has a Dragon Martial Soul, and Gu Yuena Is His Wife.

A Titled Douluo Joins Spirit Hall from the Start and Becomes the Ninth Consecrated Elder

Douluo Dalu: Becoming One of Ning Fengzhi's Twin Daughters

In her previous life, she was framed and left on the brink of death. She took her enemies down with her, only to have her soul scattered. Now she has become Ning Rongrong's older sister, Ning Wanwan, and inherited the Devouring Godhood of the soul beast Xue Yue!

There Are No More Masterpieces in the Douluo Series. Feel Free to Argue