Recommendations

-Both have xianxia and wuxia elements
-Both were adapted from Jiu Lu Fei Xiang's novels
....................................................................................................................................................................................................

Both of these TV shows revolve around dating. While SI revolves around a group of singles trying to find their perfect match, CD deals with four couples who date one in other in order to determine whether to stay in the relationships they are already in or move on to another person.

If you like extremely graphic gore, you will enjoy both the movie and the series. The actors in both are really good.

Another true story about Prince Sado. Both were sad and depress. Great casts and grest acting overall

Both dramas are historical fantasy/horror with a ghost FL and human ghost-seeing ML.
.......................................................

Both dramas are historical, although different time periods, and horror/fantasy involving ghosts, gods, and other supernatural beings as well as locations. Both couples are antagonistic at first with a slow burn romance as the plot unfolds.

Both dramas are a mix of comedy, fantasy, horror, mystery, and romance. The MLs are prickly, initially obnoxious, and arrogant, hiding past pain over how they've been treated by society and/or loss. The MLs can see ghosts and have a ghost/several ghosts who they live and work with. The FLs are tough and outspoken. Both dramas involve reincarnation, evil spirits, and historical elements (flashbacks of FNOS vs. all of AATM).

Both dramas have a prickly, loner lead who can see ghosts whose world is interrupted when the other lead enters their lives. Both dramas have fantasy and horror elements, as well as character growth for both leads.

Both dramas have one lead who can see ghosts and the other lead is a ghost with no memory, trying to recall their past.

Both dramas have a lead who can see ghosts and a character who is a ghost. Both dramas involve character growth for the lead(s).

Both the dramas involve rescue operation.
The male lead is a fire fighter and the female lead is a doctor in "The flaming Heart". LCR involves the story of a doctor and a lawyer who joins a non profitable rescue operation team.
The physical training for the characters is similar .

Hisashi and Mai are set to have their wedding ceremony in 3 months, but Mai falls ill and lapses into a coma. Hisashi does not give up on his fiance and prays for her recovery. Finally, Mai wakes up, but she doesn't have any memory of Hisashi.
~~ Based on the true story of Hisashi and Mai Nakahara.

similar themes of love and heartbreak.
Both have an nostalgic feel to them, with good cinematography and cast.

The people against the government. Some kind of virus spreading around and killing people. The main character, a man, trying to protect a child, a girl. They are very similar, but The flu is not on a plane.

Although the setting is different, the dynamics between the master couple are very similar. The boss ML is always criticising the FL but he actually likes her and wants her to be the best version in herself. Both dramas deal with police work, although in different times and circumstances.