I've watched both City Hunter and Remember: War of the Son, and really enjoyed both of them. They are two completely different dramas, but if you like action and romance, City Hunter is for you. If you enjoy law and melo, Remember is a great choice (it does have some romance, but very little). I personally like Remember more (topped my top 10 dramas list), but City Hunter was also very exciting. I noticed that you are currently watching Healer; City Hunter is very similar in terms of plot. hope this helps! :-)