Recommendations

Both is in the girls love genre and has same actresses.
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in Chicago Typewriter- Writers that lived under Japanese rule in the 1930's are reincarnated into a bestselling writer who is in a slump, a mysterious ghostwriter and an anti-fan of the bestselling writer, while in pulang araw for childhood friends navigate life during the japanese colonization in the philippines.
is similar in settings under the backdrop of japanese colonization in South Korea while Pulang araw is set in the philippines.
- Chicago Typewriter is a fantasy - time travel drama, while Pulang araw is a historical drama
- it highlights patriotism
- both has great attention to details - camera works and great acting too
- both has great osts too.

Keeper of the Lake looks to be delayed indefinitely but if you are looking for a similar vibe, Lover Merman seems to be it. Also billed as a BL with a Merman lead, this is supposed to have drama, romance, mystical lore and more.

Lover Merman is a Thailand production.
Keeper of the Lake was to be from the Philippines.

The female lead enters the novel's world and must do some missions and changes in order to get out to her real world. She bacome the villainous side female character lin yu and must make the "black lotus" mu sheng falls in love with her...

Both are LGBT dramas with male mermaids (aka mermen) involving “romance”.

Lover Merman is from Thailand whereas Mermaid’s Jade is from China.

Both Dramas about male mermaids aka Merman (mermen). 49 Days was a bromance but Lover Merman is an actual BL.

49 Days with a Merman is a Taiwanese production.
Lover Merman is a Thailand production.

If you love cooking competitions where the best chefs battle, then follow Chef Choi as he is a Korean Representative Team Member who travels around the world to compete against foreign chefs as he strives to do his best as a team member for his team to win.

In Culinary Class War, Chef Choi is one of the 100 contestants to compete in the Netflix series, where he also takes part in a team challenge competition and don't have to travel in order to compete as all of the competitors are at one venue.

Watch Korea's best chefs cook within 15 minutes in a cooking competition with your favorite hosts Kim Sung Joo & Ahn Jung Hwan. The Korean chefs are on both shows but National Chef Team (or Cook Representative) is a show where Korean chefs fight in a team and travel to various restaurants around the world and battle against foreign chefs.

In both After Sundown and Don’t Sleep, the main characters are dealing with a curse and malevolent ghosts. Both also involve sleep as an aid for the curse. Both are suspenseful and have intense scenes. Don’t Sleep is darker and grittier than After Sundown but both have very ominous vibes when watching. After Sundown has romance involved in its plot. Both movies are also Thai productions.

Subsequently, Kim Ji Yong begins living two entirely different lives. On weekdays, he's a model student at the police university. During the weekends, he punishes criminals who'd received light sentences and continue to commit criminal acts. Now called Vigilante, Ji Yong receives help from admirer Cho Kang Ok. Meanwhile, Detective Cho Heon chases after the man called Vigilante. (Source: AsianWiki; edited by MyDramaList)

Both are about couples who get back together after a breakup.
Both reveal intense emotions that remain deep inside through interviews.

Lee Ra El was a girl who idolized her loving parents – a highly intelligent father and a strikingly beautiful mother. But when cruel forces beyond their control cause her father’s death, her family crumbles. Embittered by this terrible experience, she vows revenge on the super-rich people who orchestrated this terrible tragedy. Her prime target is Kang Yoon Kyum, the CEO of the lucrative LY Group business empire, and one of the ringleaders of the plot that ultimately destroyed her family. Lee Ra El’s weapon of choice is divorce. By placing herself at the center of a legal battle worth a staggering USD 1.6 billion, she hopes to bring Kang Yoon Kyum and LY Group down once and for all. But in order to do so, she will need to wage a bitter legal struggle and fight powerful forces both inside and outside the courtroom. However, this plan has been in the pipelines for 13 years for Lee Ra El, who believes she will use all of her guile to catch Kang Yoon Kyum out when he least expects it. Can revenge bring her the satisfaction she craves – or will it end up consuming her?

If you like The Immortal Ascension, you might like Shui Long Yin. Both are fantasy wuxia (martial arts) dramas that centers on a male lead's spiritual and cultivation journey and heroism through the world.

If you like Fangs of Fortune, you might like Shui Long Yin.

Both are wuxia fantasy dramas featuring a strong male lead who is morally ambiguous, cold and aloof.

Both feature nuanced characters with multiple ambiguous relationships and complex motivations.

If you like Dashing Youth, you might like Shui Long Yin.

Both are wuxia (martial arts) dramas that were directed by the same director, Chen Zhou Fei.

Both feature strong leads with martial arts prowess and brash temperament.

Both have multiple emotion lines between multiple characters.