Recommendations

Both create a girl group.
One girl from Produce is in Girls on fire as well.
One is mnet the other JTBC.

Blue birthday is a shorter web drama but thats also similar
There the FL tries to save the ML in the school days and has come from the future just like in Lovely Runner

Both are from JTBC.
Both creating a group. Both are for vocal.
One is be female only the other male only.

Both are from JTBC.
One is for groups the other build a group.
I loved Peak time and hope Girls on Fire is as good.

Complicated female lead with real struggles, introverted life, finding peace in loneliness, office job, self doubt that might hurt others so keeping your distance from others who are willing to get along with you, misunderstanding due to your actions and lack of communication.

The vibes in both dramas were similar. Remote (spooky) villages, abandoned forests, interesting side plots and folktales with supernatural elements

Both are set in the '90s before moving to present day at the end and have a nostalgic feel and a school setting. Both have sweet and somewhat poignant romances in which the leads somehow miss being together (permanently in 20CG, temporarily in ARRTI). One has a sad ending, the other happy.

sea diving, country theme, youth, high-schoolers. Please be advised Grand Blue contains some PG-tags before letting kids watch, its all about jokes lol.

Same set up. Cuteness overload. Funny, lots of humor. Lighthearted sweet and relaxing sometime emotional you have them all. The similarity is there, if you like this you will like that and vice versa. Enjoy!

Exchange Season 2 has shown some good bonding and friendship, which is also being portrayed in this one. The warmness and the sadness of each of the participants of both shows are also quite similar.

Both are set in sort of the same time period -- minus the time travel aspect but both deal with crimes and criming solving within a certain period of time when policing wasn't so cut and dry or as cemented as it is today

Both are set in sort of the same time period -- minus the time travel aspect but both deal with crimes and criming solving within a certain period of time when policing wasn't so cut and dry or as cemented as it is today

Both have some kind of genetic mutation kind of feel to them and both feature the same Female Lead with a few differences.

Love between two deities. Both male character are cold and alone at first, sitting as high gods above others. then they fell in love with a girl and are willing to do anything

Both dramas contain the element of time travel into a parallel timeline, where the MC attempts to change the past.