Drama with popular or well known ML

• Love O2O - Campus idol (one of those dramas where they exaggerate the reaction so all the girls on campus are obsessed and flock to wherever he is as if he were an actual idol).
• Accidentally in Love - Idol / singer.
• 2gether - Campus idol (BL).
• W - Olympic gold medalist / central character in a murder trial drama where he was both a victim (in the sense that his family was killed) and a suspect (because the police couldn't find the killer) / main character and producer of a show where he helps victims resolve cold cases so they aren't victims of the justice system like he was / main character of a manhwa.
• Go Go Squid! - Formerly China's top competitive E-Games player (capture the flag tournaments) and now a coach for China's second best team. He's a legend with a following of devoted fans.
• K-POP - The Ultimate Audition - Leader of a popular K-Pop group.
• You're Beautiful - Lead vocalist of a popular K-Pop group.
• Uncontrollably Fond - "Superstar" actor and singer.

Prison Playbook - that is also about a male lead you is known everywhere. 

Also:

• Dinner Mate - ML goes viral saving someone and is a known psychitrist
• Ma Boy -ML is a popular model, butbthat is whem he cross dresses as a girl
• ML is singer/idol/songwriter/musician: when the devil calls your name, monstar
• ML is a popular writer: chicago Typewriter, its okay its Love
• ML is royalty: Goong, King 2 Hearts, The Eternal King

AHHH SO MANY ITS HEAVNLY!!