There are many isekai manhwa that have been crafted perfectly for an anime adaptation. Below are some titles worth your attention!
1. The Greatest Estate Developer

From a civil engineering student to a powerful estate developer in a fantastical world, Suho Kim knows what awaits him in the future if he continues down the path of Lloyd Frontera, a character from the novel he often immerses himself in.
The Greatest Estate Developer follows Suho Kim as he strives to avoid the grim future that awaits him by channeling his architectural skills into creating a prosperous life in this new world. This series is filled with humor and features a fantastic cast of characters.
2. Villains Are Destined to Die

Siyeon Cha finds herself haunted by a game where she must navigate the challenges of living as a supporting character. She struggles to survive in the role of Ivonne, facing the constant threat of death at the hands of Penelope Eckhart, the main character, all while trying to change her fate.
The game grants her a brief respite, allowing her to see the romantic advances of the male leads, but Penelope is aware that she has a limited timeframe to secure a love interest among them if she wants to avoid her grim fate. While this may seem like a cliché journey, the story is engaging and perfect for an anime adaptation.
3. Pick Me Up!

Gacha games have caused quite a stir, but Loki—a top-tier character in the game—finds himself in a peculiar situation when he encounters Islat Han within the game world of Pick Me Up!.
Not only is he a one-star rookie hero, but he must also lead other players and clear the 100th dungeon level, something no one has managed to do yet, if he wishes to return to his normal life on Earth. This presents a perfect blend of game mechanics and character development for a captivating anime.
4. Secret Lady

In a twist of fate, Yoon Seolwoo reincarnates as Rosentine Arzen, choosing to conceal her supernatural ability to see spirits to protect herself and her beloved family, as this power is often misunderstood.
However, peculiar events unfold when Rosentine’s abilities lead her to uncover a mystery involving the royal Prince Charteris Kartazen. Determined to navigate through this royal intrigue while keeping her powers hidden, she must find a way to secure her safety without revealing her true identity.
5. Beware The Villainess!

Melissa Foddebrat, a hardworking employee, suddenly finds herself in the role of a villainess within a novel she is reading. Although Melissa does not die in the story, she is aware that her happy ending is unlikely.
Now, Melissa is determined to carve her own path towards a better fate while utilizing her knowledge of future events to her advantage. This manhwa is filled with humor as Melissa exploits her newfound abilities and engages with the male leads while trying to win her own heart, all while navigating the complexities of her character’s fate.
6. Who Made Me a Princess?

Reborn as a princess, Athanasia faces a daunting reality in which she must navigate the treacherous waters of royal life, knowing her fate involves death at the hands of her father.
With no easy way out, Athanasia begins to devise a survival plan, gathering valuable resources and skills to ensure she can escape her destined demise and live a life free from the confines of the palace. Yet, her royal lineage draws the attention of the emperor, complicating her plans for survival.
7. Surviving the Game as a Barbarian

Who wouldn’t want to thrive in a fantasy game where they can unleash their inner warrior? That’s exactly what Hansu Lee experiences as he gets thrown into a game where no one else can compete. Upon reaching the final dungeon, he receives a notification that he has completed a critical quest.
From then on, he finds himself in the body of Bjorn Yandel, a barbarian in the game, embarking on a new journey filled with challenges and adventures.
8. The Divine Surgeon

Doctor Han Jinsoo lived a tragic life, despite his best efforts to become a good person. Ultimately, he lost everything due to betrayal from a fellow doctor, leading to his untimely death. Afterward, he is given a second chance at life in the body of Hua Tuo, a legendary physician from ancient China.
Unfortunately, the medical practices of ancient China differ significantly from modern medicine, forcing Han Jinsoo to adapt to his new circumstances without the conveniences of contemporary healthcare in this historical adventure.
9. FFF-Class Trashero

Hansoo Kang is an ordinary boy who finds himself transported to Fantasia, a world governed by magic. His life takes a turn for the bizarre as he learns that he is now part of a game where he must navigate challenges that no one else can overcome. As he strives to adapt, he discovers that achieving greatness in this world requires more than just strength—it demands a clever strategy.
Unfortunately, Hansoo Kang receives a low rating from the game, as raw power alone is not enough to become a hero. Stuck in Fantasia, he must devise a new plan to reclaim his ordinary life, including deciphering the meaning of his new role as a hero.