http://www.books.shushengbar.com/?page_id=27 Scroll down to the modern romance, there should be plenty of it. Just remember, some aren't happy ending, and don't go near Passion Heaven.
www.novelupdates.com/series/still-wait-for-me/ Still fresh, though I doubt it if there's an harem included or not, there's no tag but I'm still not sure. But don't worry, so far the story is good
Best to Have Met You (complete) Evil-Natured Husband, Don’t Tease! (on going, from historical to modern) Come and Eat, Shan Shan (complete) Black-Bellied Dad (complete) Blazing Sunlight (complete) Heyi Shengxiao Mo (complete) Really, Really Miss You (complete)
complete The Rice Pot Next Door (some nsfw) Beautiful bones Fleeting midsummer ongoing translation Marriage concerto Good Morning, Miss Ghost Reborn as my love rival's wife short stories The probability I can kill my wife... and sequel You Owe Me Your Draft angst (not for faint-hearted) You Are Still Here Rolling love (nsfw) tragedy Turning Back Time
Romance Modern The Destruction of a Triad Boss Trilogy I Don’t Like The World, I Only Like You When He Comes, Close Your Eyes A Slight Smile is Very Charming Blazing Sunlight