I'd say 'Solo Leveling' is up there. The reason? Its amazing art, engaging plot, and well-developed characters make it a favorite. The protagonist's growth is especially thrilling to follow.
To draw a fantasy manhwa chapter 1, focus on creating an engaging opening scene. Pay attention to details like backgrounds and expressions. Also, plan your panel layout carefully.
You should check out 'Killing Stalking'. It's intense and has a unique story. But be warned, it's quite dark. Another one is 'Semantic Error', which is sweet and charming.