I second dayidream,
I loved cheese in a trap more, and wpuld recommend kt. But with you description consideration between the two, then lucky romance is the one you should pick.
Lucky romance - is a very fluffy light drama. the female leads tends to be irritating, and the story at the start is a little wonky but the male lead was ultra and ultimately endearing.
Cheese in a Trap - from the start this drama hooks you. The character interaction, the chemistry and the acting was brilliantly amazing. But toward the end the writing turned a little melodramatic and weird. Still looove this drama to bits.
Other suggestion: Love O2O, Weightlifting fairy Kim bokjoo, Monstar, We married as a Job, from 5 to 9