My Cherie Amour (I go recommending this to everyone including my friends, cousins, colleagues, and in some mdl forums; a rich and confident woman chasing a kind and self-sacrifice judge) - sweet and funny but there's moments when you'll definitely cry
Nodame Cantabile (a crazy, lazy, gluttonous prodigy pianist chasing a serious and perfectionist pianist-turns-conductor) - super funny
Only for Love (main couple: an ambitious and smart scheming reporter chasing a handsome and cool tsundere businessman + side couple: a cute and brave young heiress chasing a serious and innocent professor) - sweet and funny but there's also some sad moment
Edited
Additionals (more angst than the previous three titles with time skips):
Crush (a young broadcaster chasing a blind songwriter, break up, meet again after years: a woman with mental problem and normal man. They still do the same jobs I think)
My Sunshine (a lively and kind rich girl chasing a serious model student, break up, meet again after years: a shy photographer and a gloomy lawyer)
The Love You Give Me (a young woman tries to give a young man the diary of the late victim of a bus-they ride the same bus-accident and fall in love with the man who think she's the diary owner-his orphanage friend, break up, meet again after years: a single mom who works on IT industry and an IT company owner)