You’re Beautiful! Only because of the amount of meta humour though…so if you’re not familiar with Korean pop culture I’d say Hana Kimi would be a good equivalent.
Hana Kimi hands down. I don’t think I have laughed so hard for any other drama! The combination of Ella and Jiro, plus the premise of the drama/manga itself, it was just all too perfect. The actors didn’t have any “baggage” as idols either, so that opened the doors to even more silliness and scenes that were just so over-the-top/dramatic/ridiculous (in a good way of course).