Recommendations

Both drama's are based on horror manga's that focus on the supernatural

Both drama's are comedy's that focus on a young male teacher who can see Yokai's/involved in the supernatural in some way and teams up with students to protect the class.

Both have a female ghost main character, a main character that can see dead people, a past their prime Shaman type supporting character, and a sweet character with a dark secret. Also, the ghost is trying to remember what happened to her and figure out what she has to do to move on, in both.

Both have a person that can see dead people. Both have Funny and Scary Ghost characters.
Master's Sun is far superior. The writing, acting, and chemistry is all 10 times better. It is a drama you will want to watch more than once.
Bring It On Ghost has much more one dimensional characters and a predictable storyline. It does have a couple truly funny character actors playing side characters though. The 2 guys in the ghosthunting club, the Shaman, and her ghost friend are all hilarious. It is unlikely to go on a rewatch list but it will be good for a laugh the first time through.

Beethoven Virus also has a sort of rag-tag group of musicians come together to form an orchestra in order to achieve their dreams. Both dramas focus a lot on the individual characters and the relationships that they build within their group.

Heartwarming dramas that deal with family, parenthood, and the relationships with people around

Helmed by the same director. The focus is on a strong heroine who has brains and beauty but started off in a poor social position. Using her intelligence and cunning both heroines outwit their rivals and rise steadily within the palace to a position of power. They are realistic but never cruel.

There is just one similarity: Guy must to find himself in woman body.

Both main characters want to help kids without using violence.
And they have similar personalities.
However in KT the main character is a teacher while in shibatora the mc is a policeman

Two high schoolers share a house, fall in love, and the male lead is super cold and aloof. Kiss Me's main man, played by Mike D'Angelo is a much better character and softens over time.

Basically the same plot : rich guy/poor girl. The main character in this both dramas is a single mother trying to do anything for his child.

They both have a main lead who has a concealed identity. Both male leads are athletes and there is also a second male lead that will melt your heart.

Both deal with affairs, the conditions leading to it and the consequences of it

Based on real-life events. Depicting the trials and tribulations of an injustice court system.

Tahara Mika is an ordinary high school girl. One day, out of the blue, one of her classmates kisses her. His name is Sakurai Hiroki also known as Hiro. Hiro stands out because of his bleached hair and piercing. Apparently he is also dating someone. Mika is shocked and hurt that her first kiss had to happen this way. She desperately tries to forget about it. Then, her friend tells her that she should find somebody else and suggests Tatsuya, another boy in their class. However, before she even realizes it, Mika is already in love...