Recommendations

The love in both dramas especially in the past was pure and the parents in both dramas did everything for their kids to make them live amazing and wonderful life

Both are medical dramas. Both the dramas deals with Neuro related issues.
Both have slight romance, slice of life.
In one series , its by Neuro degenerative disorder and in another it is caused by unfortunate accident. One has memory loss element

In one series: The female lead is neurosurgeon as well as patient and also one has little mystery element.

Both are slow, slice of life series.

About a group of people with superpowers - I am Nobody is people who gained powers through their DNA, The Record of Strange Things is people who gained powers through objects.

There is a deeper mystery behind the story.

Superpower is rooted in Chinese culture and roots

- The Haunted Palace focuses on spirit possession, while AOS is soul possession
- Soul swapping (powerful character's soul ends up in a "weak" mortal body)
- Sageuk kdrama, palace conspiracy with fantasy element
- Main leads become reluctant allies

FL ran away, give birth to ML's child, then comes back years later. In both dramas, the kid is sick, and the SML is a doctor, and is close to the FL (in TLYGM he has a crush on FL and is her best friend, in RF he is her ex).

Similar plots, both are putting little detective roles and try to investigate whatever it is they need to investigate, and both have dark themes and topics but also romance.

cast of characters with unique personalities solve mysteries. the main characters aim to find the truth

Different versions of the same story. .
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Different versions of the same story. .
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Different versions of the same story. .
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Same director. Same sense of humour. Some of the same cast (not the leads though). At least part of the decor and styling is the same (the historical setting).

Both dramas involve soul/body swapping and adjusting to new circumstances for one of the lead characters.

Different versions of the same story . .
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Both dramas involve a dragon who couldn't ascend so they became Imoogi. Other supernatural creatures of the Korean folklore also appear and have a part to play in the story.

Both dramas also involve a love story that dates way back (ML is an immortal/very much older than the FL in both cases).

Same premise. Ngl the chinese version definitely feels a bit more scripted but we all know terrace house was scripted as well atp

Not exactly the same plot, but its like slow romance and healing drama like OBS. The story line is best friends turned into lovers, but the guy falls first and then the girls starts liking him. Its available on YT.