Things I'd recommend

"The problem is that I became Roxana Agriche, the older sister of the sub-villain. My damn father kidnapped the heroine's brother.
Now, is the only thing left to meet a terrible end from the vengeance of the heroine? But what if I can avoid that horrible development?"

+ ongoing
+ Ch: 43
+ MC 10/10
(strong, pretty and intelligent FL)
+ Storyline 9.5/10
(the plot hasn't really developed but so far it's good)
+ Art: 10/10

"In his second to last year of high school, the dispassionate but studious, Yataro Yaguchi finally finds a calling in art. With no prior art experience, he decides to work towards to applying to an art university. A decision with potentially disastrous results."

+ Ongoing
+ Ch: 60+
+ MC: 10/10
(the depth that the mc and characters have is chefs kiss)
+ Storyline: 10/10
+ Art 10/10

Shoutaro is a man of few words. He manages a used books store called Mononobe Koshoten and has an efficient young boy named Shiro to help out with the work while he reads the day away. But behind this normal and mundane facade Shoutaro has another job: the collection of some rather unpleasant old books…

+ Ongoing
+ Ch: 7
+ Storyline: 9.5/10
(really good but hasn't really developed)
+ Art: 10/10

TW: Gore and blood

One day, a girl was kidnapped. However, that girl started to desire a life living with her captor, and swears that she will marry him. In return, her captor provides her with happiness that she had always longed for. How could a story between a girl and her captor be so heart warming?

+ Completed
+ Ch: 68
+ MC: 9
(btw I think it's not really stockholm syndrome)
+ Storyline: 9.5/10
(really good and the plot is really unique)
+ Art: 9/10

"Ethics" is the path of humanity, a principle that becomes the norm of morality. Learning is not a problem in the future. But this class is filled with the truth of life. Cool ethics teachers and Takayanagi confront the problems of students and their own stance.

+ Ongoing:
+ Ch: 30+
+ MC: 9.5/10
+ Storyline: 10/10
(just an ethics teacher and his students lives)
+ Art: 9/10

"Yoichi Isagi is one of 300 U-18 strikers chosen by Jinpachi Ego, a man who was hired by the Japan Football Association to guide Japan to winning the World Cup. Ego's plan is to isolate the 300 strikers into a prison-like institution called "Blue Lock", in order to create the world's best striker, which has been lacking in Japanese football."

+ Ongoing
+ Ch: 240+
+ MC: 10/10
+ Storyline: 10/10
(so so so good, just read it)
+ Art: 10/10

With the sudden outbreak of a deadly virus, humanity is thrown into chaos. The few who survive it are either transformed into horrible cannibalistic creatures called "Worms,".Haru, a student at New Seoul High School, dreams of joining the prestigious "ISO" - an organization formed to fight the war against this virus. But the future in store for him is nothing like he imagined...

+ Completed
+ Ch: 182
+ MC: 9/10
+ Storyline: 9.5/10
+ Art: 9/10

In the imperial court, a young woman is put into servitude. The tale is just beginning for the woman pharmacist from the red-light district, as rumors circulate about the emperor's children's lives being short-lived. Her curious nature and thirst for knowledge pushes her to action. To satisfy her curiosity, this young pharmacist will investigate the origin! What is shifting in the imperial court..!?

+ Ongoing
+ Ch: 60+
+ MC: 10/10
(She's hilarious)
+ Storyline: 9/10
+ Art: 9.5/1

When vampires destroy her chance to have the normal life she’s always wanted, Hayan is forced to draw on her darkest secret to rid the world of the merciless hunters that took it over 10 years ago. With support Hayan steps up to protect her loved ones, face her past, and get her revenge.

+ Completed
+ Ch: 93
+ MC: 10/10
(we love a strong and intelligent FL)
+ Storyline: 9.5/10
+ Art: 9.5/10

A plain looking young man lives in a world that runs on the conventions of BL manga. He doesn't want any part of it, but he can't help but comment on the trends he sees.

+ Ongoing
+ Ch: 50+
+ MC: 10/10
+ Storyline: 10/10
(it's hilarious, the bl tropes just it's sooo good)
+ Art: 9/10