Recommendations

Boy's Love material!! Both have cold calculative guys.
I Love You As a Man - is more comical, and one that I adore; music is pretty good.

Funny and Watabe Atsuro is also in it. Both actors/actress do crazy things. Disobedience is a must in these dramas

Both shounen ai reference material. Cute guy-ish; no mating scenes.

light-hearted shounen ai material. Both does get serious at some parts.
Antique Bakery - comical; one of my favorite drama to watch

Both have the exact concept, theme, and genre. They are light-hearted, super cute. Generally made for beginner shounen ai.
Except
Boy meets boy is a pretty short film.

in the Shounen ai section. The couple is cute. Good character development.

Both contain shounen ai reference material!

One of the actors in The King and the Clown is very feminine so definitely great to look at. The kind and the Clown --> the style and lanuage is a bit vulgar, not exactly for the light-hearted people.

This is also very cute. It has shounen ai references so it's definitely great for fans of the genre. It's light-hearted enough for general audience.

For Dangerous Love --> It's more comical. The actors were the DBSK band group members, unfortunately they broke up already T-T
:*(

Gender bending. There are 4 versions of this show-- from Taiwan (Hana Kimi 2006), Japan (Hana Kimi 2007), China (Runaway Sweetheart 2011-12), and Korea (To the beautiful you 2012).

Gender bending. There are 4 versions of this show-- from Taiwan (Hana Kimi 2006), Japan (Hana Kimi 2007), China (Runaway Sweetheart 2011-12), and Korea (To the beautiful you 2012).

Both have funny characters with serious cases, also both dramas partners are great combo (even if in Bitter Blood they say that they hate each other while in doS they like each other openly) also Bitter Blood is more realistic while in doS have some unrealistic, "Manga/Anime" style moments (although it's only few moments)

they are both similar. Kind of... also the mood is fun in both ways but also deep and w a sad ending

you will understand by the end of the movie. I was looking for this movie like forever and I kept thinking that it reminded me of koizora in some ways

The main character in both the dramas have lost someone dear to them in a past case. Also both the dramas consist of a group of people that come across each other accidentally due to a case leading them to form a team together.