Hi!
I haven’t watched too many c-dramas and the ones I liked are exclusively light rom-coms, mainly coming of age, so, if you’re into that, check:
Little Thing Called First Love - my favorite among them, i often recommend this one, very sweet but not silly, plays with some cliches but in a refreshing way.
Put Your Head On My Shoulder - very light and cutesy, accidentally living together and falling in love.
Professional Single - this one is also about school/university + first love like the other two, but there’s a jealousy/controlling dynamic (it’s being called problematic too, so be warned).
+ Midsummer is full of love - this one isn’t the same kind as the others, in fact, it’s the chinese version of Full House, so it’s a contract marriage/hate-to-love relationship, but it’s a light drama.
PS: I haven’t watched them, but if you want to watch the most populars c-dramas, you should probably try The Untamed and Love O2O (I dropped it) ^.^