Recommendations

Both have more comedy than really scary stuff and make you root for the characters. When it comes to scare level both have a really low level and can be watched by people who are scaredy-cats like me without trouble.

In "King is not easy" the Body Swap is between a king and a servant
In "The Trust/No Doubt in Us" the Body Swap is between the king and the Queen

Both are mini dramas with a (censored) BL relationship and a focus on sports. The two MLs are initially antagonist to each other.

Both movies focus on a single female friendships and the depth of the relationship and how their lives interconnect followed by a tragic death.

Both coming of age stories. Both have fathers who chose to be fathers. Though the family situations are different. They have a similar nostalgia to them.

Both series try to point out what it makes to be a "Good Doctor". As someone who cares about their patients, both series follow similar themes. So if you are looking for series with similar topic and environment, these are it.

Both are based on the same classic Chinese literature plot. Three Kingdoms is a long-long story, Growling Tiger is about the way of Syma Yi and his family.

Both are Taiwanese BL.
Both have couples who are really comfortable with each other
no cringey or awkward scenes

They aren't exactly prequel and sequel but they have the same format:
- Main actors who play a fictionalized version of themselves.
- Every episode is a different story (and they are not related to each other).
- Every episode is directed and written by a different director and screenwriter.

They aren't exactly prequel and sequel but they have the same format:
- Main actors who play a fictionalized version of themselves.
- Every episode is a different story (and they are not related to each other).
- Every episode is directed and written by a different director and screenwriter.

They aren't exactly prequel and sequel but they have the same format:
- Main actors who play a fictionalized version of themselves.
- Every episode is a different story (and they are not related to each other).
- Every episode is directed and written by a different director and screenwriter.

Both are mini dramas with a visually impaired ML and the FL who starts out as a servant/aide to him.

Both are mini dramas in which the ML is a disabled CEO with scheming relatives and the FL has abusive/manipulative relatives and is trying to protect her parent (father vs. mother).

Both dramas have the same actress as the FL and are about a contract or arranged marriage between the FL and a wealthy CEO that turns into true love.

Both are mini dramas in which identical twin sisters with very different personalities are forced to trade places by their parent/parents, leading to one marrying and falling love with her sister's rich fiancée.