Pretty Li Hui Zhen has a cold male lead.
Love O2O has a supposedly cool and charming and unapproachable and swoony male lead (but he's actually surprisingly warm to the female lead.... more swoon... and not much of jealousy going on because.... well everyone only has eyes for him, including the female lead. But I really like this drama so I recommend you to try it out!)
Whirlwind Girl. Pretty much a reverse harem where one of the male lead is cold and jealous (another being warm and sunshine and the third one being cool, rich and charming). Watch this after falling in love with Yang Yang from Love O2O.
Master Devil Do Not Kiss Me has a cold and jealous male lead. A modern chinese drama that copies the exaggerating style of older taiwanese dramas and turns out surprisingly well (and comical). Short episodes of 20minutes make it a breeze to go through.
Go Princess Go. Very cold and jealous male lead. Wacky drama. Historical setting with many modern references. Much more fun if you understand or can relate to china's modern culture/lifestyle. 20 minutes episodes.
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Classic taiwanese dramas w cold & jealous (& likely rich) male lead: Autumn's Concerto and Fated to Love You.
Personal favourite: Hot Shot. Guess you could say that Jerry Yan played a cold and jealous male lead here but romance was only half the storyline. The bromance in this drama was the highlight.