I've always been a kdrama lover, but my roommate got me hooked on cdramas. I'll give some of the dramas I've watched and my notes on them to hopefully aide in recommending. (Also I'm putting spoilers just because I talk vaguely about some of the endings.)
The Double: 10/10 ABSOLUTELY LOVED. Probably my favorite so far. Love the revenge trope and what I call the "baddie-enabling" ML. Also there is nothing hotter than a brooding general covered in blood for his wifey.
Love Game in Eastern Fantasy: 9.5/10 I'm not a huge fan of isekai because it can feel cheesy and repetitive, but let me tell you I WAS SOBBING by the last three episodes. The way they ended it was perfect, in my opinion. It got a bit slow in the middle, but I think that was a bit of the point. I also love Esther Yu, anything she's in is gonna be iconic.
Love in the Clouds: 9/10 My most recent completion. SO GOOD. Was not expecting those plot twists, and the whole production felt really high budget. Twenty-Seven was ADORABLE and definitely stole the show. I wanted to squish him every time he came on screen.
Falling Into Your Smile: 9/10 My favorite contemporary drama I've watched. Loved the gamer concept, and I actually liked the gameplay cutscenes. And the chemistry, PEAK. High rewatch value for sure. Ming is my favorite character; having Merxat as a ML in more stuff is a need, not a want.
Legend of the Female General: 8.5/10 Loved the chemistry and the concept. Thought some of it was unrealistic, like there was no way nobody realized that He Ru Fei went from being tiny to like six foot. Fight choreography was great, and the cast was exceptional.
Some others I've watched and what I rated them (I'm a conservative rater):
Love Between Fairy and Devil: 8/10
Wait, My Youth: 9/10
Meteor Garden: 7.5/10
Perfect Match: 7/10
Exclusive Fairytale: 8.5/10
Love Like The Galaxy: mid-watch, 10/10 so far