A Piece of Your Mind - healing romance slow-burning melodrama
Hello Harinezumi - mix of genres, mainly comedy and mystery, but it also has romance (first 4 minutes are weird, then it gets better) :)
Juunen Saki mo Kimi ni Koishite - time travel romance
Love Like White Jade - comedy/parody historical romance, multiple couples
Shanai Marriage Honey - happy romcom
Others that I could recommend you already saw. :)