Both have same plot: behind the scene of korean entertainment and dealing with scandals and image of actors + romance subplot.

Both well-written and directed Biographies about a female actress/singer's life.
Near-identical plot!

Very similar vibes, both will make you laugh and cry.

Both Romcoms on the surface, but really is about mental health/psychology and are DEEP dramas.

If you like one, you must watch the other!
Actually even if neither is familiar...Watch them! Really good dramas!!

Same freaky doomsday scenario of an asteroid heading towards earth.
SF8 BIOO is just a short oneshot /1 standalone episode of an anthology series.

Dystopian scifi.
An earth with limited amount of water (The Silent Sea) vs
Technology-human relations/interaction (AI, Her)

Dystopian Scifi kdrama.
Bad polluted air (Joan's Galaxy) vs Lack of water on earth (The Silent Sea).

Dystopian scifi.
End of the world literary (Baby it's over outside) vs limited amount of water (The Silent Sea).

Both set in a Dystopian future,
scifi kdramas.

The Silent Sea about about an earth with limited water,
Ambergris more about Technology-Human relations

Same format in that a fun panel of hosts watching and commenting on a dating reality show.

So if you liked the funny commentary aspect in either one, I recommend you to also watch the other one.

Similar Strong female lead:
the outspoken bold and eccentric type full of wit and charm;
hilarious scene-stealers!

Both dramas are also action-comedies with slight romance subplot and high quality writing

The trailer of Hellbound has very similar vibes with the Webtoon of Island;
both soon-to-be-dramas webtoon adaptions with supernatural monsters chasing characters

Jang Ki Yong's past life character in Born Again is similar to Kim Nam Gil's character in Island:

Both are creepy serial killer Male Leads who despite it all, are oddly charming pitiable and full of angst and pain type of characters and in both the female lead shares his pain