Recommendations

Both are sports romance drama of which Love All Play focused only on Badminton whereas Weightlifting Fairy Kim Bok Joo covers Weightlifting, Swimming and Rhythmic gymnastics.
And also watch how the main couple become friends and then lovers.

- Both are short dramas
- Relationship problems
If you already watched romanced you'll find the similarity. Though the stories are not same but fast paced stories.

Lee Soon Shin is the youngest member of a successful family. Despite her family?s successes, however, she seems to have failed to inherit any talent, and is marked as an oddball though she remains a bright, lively and courageous girl. She then meets the head of an agency named Shin Joon Ho, and he turns her life around.

Crazy Love = Drinking Solo 2.0 :

1. basic plot tell about : best instructor, private education, private educational system, management, instructors's life, South Korea's private education system & management, South Korea's education system even the motivation of MLs to be an instructor each are same, one mission, one goal

2. Both male leads are South Korea's best top-notch Instructors, Drinking Solo's male lead role is best Korean History Instructor, meanwhile, Crazy Love's male lead role is best Math Instructor
Their names mean, "Hard working person (people)" : Noh Gojin (Crazy Love) & Jin Jungsuk/Jinsang (Drinking Solo), both lead males are hardworking dilligent instructors. Because the "Jin" name in their both each names Even their ages are same. Jin Jungsuk was 35 in 2016 (this Drinking Solo drama made), Noh Gojin also was 35 in 2022 (this Crazy Love drama made). Also happen in FLs, Professor Park Hana, Korean Instructor was 29 (Drinking Solo), meanwhile Lee Shinah here was also 29, Shinah dreams to be Korean Instructor just like Kim Chabae Instructor & Professor Park Hana. Both FLs also are hardworking people as same goes with MLs

3. Both male leads have luxurious blue coloured same model cars

4. Both male leads have "trashy", "sexy trash/high-quality trash" "less manner" nicknames, these each writers create their character/role name vvvvvv reasonable & most suitable & realistic xD. because of their jerk, arrogant,cold, stingy behaviour, but Drinking Solo's male lead less jerk compared with Crazy Love's male lead. less jerk. Crazy Love's ML is the jerkest & most filthy -tempered amongst K-Drama land I have ever found, known, witness so far. Both male leads treat the FLs, everyone like insects, both male leads tend to fond of spending their time alone. Even their background, the reason why they become jerk people are resemble each other

5. Both male leads finally fall in love with FLs

Both actors played together as main casts in the series. They shared great chemistry in both series. Both series are Thai BL dramas, having a well written story. Of you love this series, you can go watch the other. Both actors played their role very well in both drama. Grey Rainbow is noth only entertaining but also educational. It spotlights the bitter truth of difficulties that LGBT couples are experiencing and Dear Doctor is a fictional story about the doctor and the grim reaper who have come acrossed once in their past.

SIMILARITIES:
- survival aspect
- being forced to betray friends in order to live
- a lot of violence (except R15 is more gore); dark themes like sexual abuse or suicide
- flashbacks to past that kinda explains what is happening (in R15 flashbacks are about a half part of the plot, when in Alice there is only a few moments)
- loss of humanity
- no other people (in Alice people in Tokie disappeared, in R15 characters are on the deserted island)
DIFFRENCES (without spoilers):
- Alice is jdrama, R15 thai drama
- Alice is sci-fi, things in R15 are much more possible to happen
- in Alice we don't really know what's happening (and who is responsible for it), while in R15 the whole thing is about one group of 'friends'
- R15 is more disturbing (a lot more) and harder to watch (please check TW for this)
- in my opinion (!) we are much more attached to the characters in R15

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Written by Ma Bo Young (novel) and focused on political plots, power struggle and intelligent characters.

The two stories were written by Ma Bo Young and have in common the political plot, well-constructed characters and palace intrigue.

Both are sports romance drama.
Both male leads are genius kind of player - Badminton in Love All Play and Figure Skating in To Fly With You.
In Love All Play, the female lead is back to Badminton after years after a scandal so she has to work hard to get back to condition whereas in To Fly With You, the female lead did not learn officially due to her Mum’s objection so she has to work hard to meet the requirement for professional athlete.

Similar story line with a spoiled and infamous princess who is out to tease and woo the imperial inspector with a reputation of having a "cold king of death's face". Story focused on female lead and her many misadventures in trying to capture the heart of the handsome royal policeman.