Good contract/arranged married dramas that I enjoyed:
HapiMari
Cuo Dian Yuan Yang
They Kiss Again* - It Started With A Kiss is the first season, but I like the 2nd season better because the couple is married here & we see them grow & learn to get used to each other more in the 2nd season than the 1st. It's also not 100% an arranged marriage drama, but pretty close given the circumstances under which their relationship developed.
Ones that I personally didn't enjoy so much, but you might:
Fated To Love You - this drama is actually quite funny in parts, esp the Korean version, but otherwise I didn't like how the arranged marriage part of it was done, mainly because the couple didn't stay together for long and there was all this acrimonious energy between them for a good portion of the show. Not to mention an annoying love triangle that overstayed its welcome. It had a great premise for the contract/arranged married theme, but totally squandered it, in my opinion.
Sunny Happiness - I found this very boring & unromantic in every single way. They absolutely did not exploit the contract marriage theme as much as they could and should have in this drama. It made me wonder why they even bothered introducing it at all if THIS was all they were going to do with it. But, anyway, that's just my take; other viewers seemed to have enjoyed a lot more than I did so you might too.
Special mentions:
Sealed with a Kiss & Too Late To Say I Love You - they aren't actually married, but they live together ... under some very complicated circumstances. These drama are more suitable for a mature audience as they feature adult characters (as opposed to teens & young adults) and are not your usual light & fluffy romances. They're full of boundary pushing passion & angst, but somehow they will totally get you hooked if you're into these type of dramas.
