Well, it varies. Many Webtoon comics offer free episodes or chapters, but some might require you to purchase coins or have a premium subscription to access the full content.
Websites such as MangaToon and Comico often have webtoon novels. Additionally, some apps dedicated to webtoon reading, like Tappytoon, can be good places to look. Just make sure to choose legal and reliable sources for a better reading experience.
It depends on your preferences. If you like detailed descriptions and immersive reading, the novel might be for you. But if you enjoy visual storytelling, the webtoon could be a better choice.
The novels that I recommend to you for the opening of the game of death are " Endless Games: Getting the Necromancer Profession at the Beginning "," National Class Advancement: Getting the Hidden Profession Undead Lord at the Beginning "," Japanese Entertainment: Floating Light and Shadow "," The Richest Man on Earth Begins from the Primitive Wilderness "," Return after 100,000 Transmigrators "," Samsara Death Game: Getting a Small Wooden House at the Beginning "," Douluo: Getting started "," Death Game: Choosing the Highest Difficulty at the Beginning "," Death Game: Getting started with a backpack "," Death Game: Burning Ten Trillion at the Start, Game of Death: SSS Reward at the Start, Game of Death: Choose the Most Difficult at the Start, Game of Death: A Golden Luck Dragon at the Start, and so on. The protagonists in these novels would experience the opening of the death game and have various special abilities and hidden professions.