Recommendations

the time capsule, he having a secret crush since high school, him having an injure and not being able to swim again, meting each other after a long time, both losers, neighbours, both male leads missing swimming

It's a longer version of the movie with a different structure edited by the director himself. Sort of like a director's cut, but split into 10 episodes and turned into a drama.

Both dramas revolve around ghosts and other supernatural things and how they haunt people. Both have at times quite interesting twists. If you enjoy one, you will like the other as well.

In both dramas the ML is weak and nice at first then they become "demon lords".
Both dramas are wuxia's with beautiful fantasy world.

Both are murder mysteries in which the ML is suspected of being a killer and viewed as dangerous by those around him. In both, he's lost part of his memories and is uncertain of past events. Both dramas have a similar feel with dark vibes and all the characters having secrets.

Doo Shik gets paroled from prison thanks to his younger brother Doo Yeong. Doo Yeong is a promising judo athlete. After 15 years, Doo Shik suddenly appears in front of Doo Yeong and they begin to live together. Doo Yeong becomes involved in an accident before the selection for the national team.

Both FLs are spies/assassins
Both MLs have a mysterious birth background and people do not take them seriously.

These two dramas have a lot in common in terms of fights, suspense, and different sects. For AOS there is the mages who have different powers/ skills and for MJTY there is the Gong residence which has different families with different abilities. there is also some light humor in both dramas that eases the tension.

Same concept of juvenlie cases.Juvenile Justice focus on the judges while For The Young Ones mainly for the prosecutor jobs. these drama will solve the cases that happen in society..

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High school sweethearts to lovers in adult life
Difference:
-in wifty it's calmer? FL is energetic and cheerful extrovert but ML is introvert and more mature?
-in love next door I know ML is mature but in FL presence oh he's gonna match her energy alright

Go ahead: siblings to lovers? Nah jk jk "adopted" siblings to best friends to lovers
The bickering, the feistiness is thereee
Love next door: it's like if FL of go ahead ended up with the second "adopted" sibling lol

Betrothed by their families when they were kids, forced to "tolerate" each other in school, developed feelings by the end of it and meet again in university to lovers.
Difference: FL is more feisty in love next door

Childhood friends to lovers...exact same dynamic between the leads!!
Context is different: into the ring the leads meet again in the same work environment (politics oriented)
Love next door focuses more Abt the leads but each their own struggles in work life and personal life but they meet again cz they live in the same neighborhood

Both dramas are about a society that’ll do anything for money, murder, nitty gritty crimes while there’s a mastermind enjoying the mess

In both dramas, the female leads pretend to be a boy/man with a reason.

In both the male lead has some jealous moments.