The following list contains manhwas from different genres which are great starting points for beginners.I can say so since these are the first manhwas I've read and it made me love manhwas.
Solo Leveling
*158 chapters,ongoing
*Genre:action,fantasy
The manhwa,solo leveling takes place in South Korea,in a world where portals and dungeons packed with dangerous monsters open randomly.Further into the story,Sung Jin Woo or "the world's weakest hunter" along with his fellow hunters came across a rare double dungeon,where his teammates sacrificed him to escape which is the starting point of his "Solo Leveling" journey.
2.The beginning after the end
*112 chapters,ongoing
*Genre:high fantasy,fairy tale,fiction,action
The beginning after the end is a story about a world ruled by martial prowess,a King named Grey possesses unrivaled strength,wealth,and prestige.However, solitude pursues those who harness great power.Underneath the extravagant exterior of a powerful king lurks a man devoid of purpose and will.Reincarnated into a new world filled with magic and surprises Grey was given a second chance in life.Follow his journey which is the beginning of his lonely end.
3.Windbreaker
*373 chapters,ongoing
*Genre:sports,action,friendship,romance
Windbreaker is a story about Jay Jo a perfect student.He's known as the student body president,has straight A's and ranks 1st in every semester.However after being coerced into joining "The Humming Bird Crew",he uncovers a world outside of studying,and embarks on a new journey with friends.
(the art style on the first chapters are kinda bad but it gets better onwards)
4.Mercenary enrollment
*41 chapters,ongoing
*Genre:action,drama,high school
Mercenary enrollment is a story that follows a young korean boy who lost his memory and parents in a plane crash.The boy (Ijin) somehow ended up in a war and became a top tier mercenary.A few years later Ijin regained his memories and decided to continue living peacefully with his remaining family members in Korea.However even after escaping his horrid past as a mercenary,his past enemies and allies continues to get involved in his new peaceful life.
5.Remarried Empress
*80+ chapters,ongoing
*Genre:royalty,fantasy,romance,magic
Remarried empress is a story about a perfect empress,Navier.She's got the beauty,the grace,the elegance,and most importantly the brains.However his husband the emperor,Sovieshtu wanted a wife not a colleague.Until one day, emperor Sovieshtu decided to divorce empress Navier,so that he can remarry his concubine.Navier accepted the divorce without complaints but what Sovieshtu didn't expect was for her to remarry a king from another land.How did this come to be?you may ask,well read the manhwa to find out.