Some recs. Make sure to check out the links.
1+ Ten Miles of Peach Blossoms - Amazing romance, it takes a while for the leads to actually be together, and it's a long drama, but it's worth it.
1+Boss and Me- ML falls first and the FL is very cute. The romance is the main plot in the drama.
1+Kiss Me- Another version of the Itazura Na Kiss story if you like those remakes. FL is way less stalky and way smarter. She even knows how to cook. The ML is sweeter.
1+ 5-Ji Kara 9-Ji Made- ML pursues FL relentlessly. He falls in love at first sight, and it's Yamapi so...
Introverted Boss- It deals with some serious psychological/mental health aspects but the romance is very cute. He's extremely introverted and she's outgoing so the dynamics are very unique.
Radio Romance- There plot is not too intricate but the romance is pure fluffiness. I watched while it was airing and I looked forward to the episodes every week just because of their interactions. I actually compared this drama to Something in the Rain in the recommendations section because they have some similarities.
Shopping King Louie- Puppy love. Both leads are very naive so the romance is fluffy and cute.
The Legend of the Blue Sea- This is a re-incarnation romance and you get to see their past life romance and the present life romance. The chemistry is really good and this drama has beautiful cinematography so for me it's one of the best fantasy dramas out there.
The Package- Short and funny. In this one, the main focus is not the couple's romance but different characters and their back stories, still the romance is steamy so you might want to give it a try. The ML is a klutz so his shenanigans will give you bellyaches from laughing.
A Love So Beautiful- You have it on-hold, but you might want to give it another try. The story is very cute and the romance gets much better in later episodes. Also, the SML alone makes this drama worth watching, even if he breaks your heart a little. The height difference though omg
Bpoop Phaeh Saniwaat- I just completed this and let me tell you is one the best Thai dramas ever. The romance is so so sweet, there's not much steaminess though but the ML's longing looks, whispers in her ear, chemistry, and overall treatment of the FL makes for it. He hates her at first (it's a body switch situation and he hates the original owner of the body) but he starts falling right away, like second episode fast. Also watch for shirtless hot men everywhere O.O
Bromance- Cross-dressing plot line and super steamy romance. Worth it.
The Eternal Love- Not ten miles. This is a Chinese web drama about a girl that travels to the past and ends up in someone else's body. The ML falls in love right away and is not shy at all, he's super affectionate and horny.