Recommendations

Both series are BL romantic comedy fluff of a similar type, even though the plot, actors, and everything else are different.
I don't really like either series, but I can see how others might enjoy it. Both feature a somewhat neurotic lead character and a more confident love interest, but rather than being shy about a secret crush, the lead in Wedding Plan is being pursued by the groom-to-be of the wedding he has been hired to plan. The bride-to-be actually encourages the groom to pursue the wedding planner, and in any case, she already has her own girl friend.
It is an odd situation that the already neurotic lead character isn't mentally prepared for (not that most anyone would be). Also the love interest teases the lead by sort of acting like an ass hole. I am slightly exaggerating the similarities here because the series are different, but it has the same vibe as Secret Crush.

It is genuinely amusing, but a little bit less flamboyant than Secret Crush, but regardless, neither series interested me. Wedding Plan isn't for me, but rather for someone that liked Secret Crush.

If you like to lovely liar you will also like I hear voice. In my lovely Liars she can only hears you when you tell the lie but in I hear your voice he hears everything which you think in the mind.

- Healing , cute and comforting series, with a solid couple, even the viewers are despairing to see them so cautious!!
- Story well written, intelligent, full of wisdom.
- Slow paced to fit the rhythm of life of the inhabitants.
- Magnificent landscapes, magnificent images... Makes you want to go to Dali (Yunnan):)
- Extraordinary actors: grand-mother, aunts, children, roommates,... => very endearing.
- the OSTs are fitting, beautiful... Perfect.

Both tell the story of a childhood-formed deep connection. In both, the MC's grow up with their friend in their mind - living in a world of their own. And learning to establish their connection, as they grow, in a healthy way for them and for their surroundings.

Both movies were written and directed by the same person, besides that on the surface they dont look like they have much in common. However, both movies discuss themes of love, both have sad elements and in both theres an age gap between the characters.

Two men become attracted to eachother, they face up and downs.
Both are japanese movies in which the central couple has an age gap too and the theme of family is relevant in both.

Two men, one of them being a sex worker, start a romantic relationship hide it in front of the parents of one of them though. However, his partner comes over to eat alot and he forms a bond with the guys mum.
Still, theyre met with tragedy.

Both are japanese movies that have lgbtq themes. They follow a gay adult man as he develops a strong bond/relationship to another person. However, things dont go smoothly, tragedy hits and he instead tries to connect with the family of the man he loves.

Two female best friends meet a guy. One of the girls falls in love with him, he however starts crushing on the other friend.
Boths films discuss friendship, love and feature a complicated love triangle.

Two men enter a relationship, one has a single mum which his partners is acquainted with as theyve eaten together etc., yet theyve not revealed their relationship to her. However, as tragedy strikes and something happens to the son his partner and mum grow closer.

Ji Ah, a woman who has inherited exorcism abilities from her mother, is the owner of Daebak Realty, a company that specializes in selling haunted houses. Ji Ah looks perfect and is also brilliant, but her hot temper makes her fists fly before her words. One day, Ji Ah encounters a conman named In Beom who specializes in exorcism fraud. Late at night when Daebak Realty operates, In Beom visits Ji Ah to make an offer. He suggests that they team up to exclusively sell houses that are haunted by vengeful spirits and lingering ghosts. Can the two get along well and deal with house prices, ghosts, and their sorrowful stories?

After losing his parents in a fire, Lee Ahn acquires the power of psychometry, the ability to read a person or an object's past through physical contact, and he decides to use it to take bad people down. While he does not know how to control his power yet, he meets Yoon Jae In who tries her best to hide her painful secrets. Together with his foster guardian, prosecutor Kang Seong Mo, and the latter's colleague, investigator Eun Ji Soo, they team up to solve an elusive case that has been haunting the lives of Ahn, Sung Mo, and Jae In. The case revolves around the life of prosecutor Kang's mother and father, who were the main cause of the fire. Jae In and Lee Ahn heal each other through their past present and future and find the culprit.

Similar concept of saving people and romance between doctor and soldiers/firefighters
Both have mature leads and they overcome challenges together and fight for the country

Crime story and display of social classes.
Oppression of the lower class
Serious story.
Actors are no shown as high schoolers and have have life experience.

Both of these dramas revolve around Illicit affairs and love triangles in work enviorenment, thus they have similar vibes. VIP has plot twists while The Interest of Love is more about a woman who self-sabotages and heals through her mistakes.