Recommendations

They both center around the quest for true love and resort to gender swap as a plot device. They even have the same soundtrack.

Male leads in both productions are trying to cover up a murder committed by someone close to them.

If "Go Ahead" talked about how to develop family, then "My Mr. Mermaid" talked about to develop dream. When you have to hold what you are dreaming of. And you cannot lose hope for your dream and your love.

Both Female Lead born in the jungle and the Male Lead is both rich. The Male Lead brought the Female Lead on the City.

Both involve someone who has been kidnapped and heinously abused by a sadistic psycho. Sweet Whip, however, is about a female victim while Sei no Gekiyaku is about a male victim.

When you step onto the island in Top Star, it's really like a blast from the past. That combined with the humor and the loving and close community relationships (and also love triangle -- meh) are similar to Reply 1988.

The story of a mother who would do anything for her child. Both of these moms meet their children after around a decade of separation.

Similiar group of friends involved in a crime, past, suspense both have terrible endings but the starts are awesome xD

Both Movies are About How to Survive in a Disaster Situation / Stuck Indoors with Nowhere to go or Escape Because your Surrounded.

It feels like a softer version of Bromance and more cutesy is the best way I can explain it. Plus well, gender-bender!

It also explores the idea of teens challenging those who exercise control over them in a high school setting.

It is an AU with the charackters from the Grave Robber Chronicals....and realy lovly.
Reminds me of the first serie of The Lost tomb from the feelings i get out of watching it.
I greatly recommend it

Both are Taiwanese dramas comprised of different casts for each episode, portraying short stories inspired by love songs.

The same leads are the MC's of both these dramas.
If you liked the childhood friend aspect of either these dramas, check out the other one!

Both of the FL's in these dramas are badass.
The main conflict in both of these is the greed of the antagonists, and, both of the ML's are head over heels for the FL!