Some that weren't mentioned above.
2gether- Thai (I think both of the leads are famous, but one of them is more known than the other one)
Where your eyes linger- Korean (One of them has a playboy attitude, so from what I remember, I figured he's famous and the other lead is his bodyguard)
Color Rush- Korean (I think one of them is an idol)
I don't know if those three count, to be honest. I don't quite remember.
They are still worth watching, anyway.
Ongoing dramas
Semantic Error- Korean
Cherry blossoms after winter- Korean
I'm sure they count, especially because I read the manhwas lol
