Any Turkish or Taiwanese,Korean or Chinese  drama, , where actually the villain or SML, is someone who strongly hates the male lead or who is the rival of the male lead, like the villain of the story

Please note that there are two guys in the drama, one is ML and one is the SML,  SML who is like a rival of male lead, hates male lead or is a villain of the story, madly FALLS in love with female lead and male lead is also powerful business tycoon, not some poor guy, okay, like both the males are wealthy, have a powerful background and are each other rivals or hate each other and both of them especially villain and falls for the heroine of the story and is obsessed with her and male lead is also possessive.

Villain/enemy:

Hotelier ML#2 was an expert recruited by the business and love rival of the late hotel owner to takeover the hotel, but he fall in love at the first sight of FL yelling at a waiter in Las Vegas.

If I Can Love You So SML was the older brother of FL's late cheater husband, trying to sabotage ML and FL's relationship but end up falling for FL.

Lost You Forever ML #3 was the general of  the remaining people from the third kingdom that's long been disappeared/lost (300 years?), at first he used FL as he needs her bloods but end up falling in love with her. Had S2

Prince of Lan Ling I actually forgot if SML was obsessed or really in love with FL, but he's the enemy from a stronger country. Ending spoiler: Different from the history, ML was alive and well but FL died living behind a daughter maybe?

Queen of Tears SML, who's trying to rob FL's mall, property and money, was obsessed with FL since childhood

The Heirs SML was a typical bad boy, with trauma after being left by his mother

SML strongly dislike ML:

Fated to Love You (iirc) SML dislike ML for standing on the two boats, hurting FL, hurting his real younger sister, yet shamelessly want FL back.

Flourished Peony ^v^ has an upcoming sequel SML was FL platonic husband, dislike ML's unusual behaviour, teasing, thick face, being 'greedy' official and more, but especially so because he's 'living together' with FL.

Hi My Sweetheart SML dislike ML for flaunting money and power, being playboy, having the same face as FL's 'first love' and seducing FL.

Rival:

My MVP Valentine SML and ML were basketball team members from different schools that's on the top two in their region.

Queen Seon Deok ML #1 and ML #2 were best friends and rivals in military and love, but in the end ML#2 becomes villain.

Which one was ur favorite 

Hotel

 Gauri:

Which one was ur favorite 

Hotelier, already watched it like 6 times.

 autumn iris:

Hotel

Hotelier, already watched it like 6 times.

Ok thanks 

Love this trope! Check some of these options out... (All happy endings btw)

Doom at Your Service - The ML is quite literally "Doom" incarnate. He embodies all death in the world.

Embrace in the Dark Night - You find out a few episodes in that the guy is actually a villain, and he becomes a possessive ML. 

Fall in Love - One of my fave MLs ever... and he literally abducts her when they first meet and then takes over the city... The overall story is fantastic too

My Everlasting Bride - Definitely fits the vibe, but the FL is more cunning than he expects... which makes him like her more

My Lethal Man - A revenge story that fits  your description perfectly *chef's kiss*

Night of Love with You - This ML is literally the villain. He's the villain of the common book she's trapped living in

Cafe Minamdong - Cocky but brilliant con artist falls for a spunky female detective... who can't stand his guts

Supervisor Husband - Like "Night of Love with You", the FL ends up falling in love with the villain of a comic book she's trapped in