One of the great ones for beginners is 'Doki Doki Literature Club'. It has an engaging story and simple gameplay mechanics that are easy to pick up. It also has a unique art style that draws players in.
You should check out 'The God of High School'. It has intense action and thrilling moments that keep you hooked. The world-building and the fight scenes are top-notch.
Some popular ones are 'True Beauty' and 'What's Wrong with Secretary Kim'. They're popular because of their engaging storylines and relatable characters.
You can try some adult-oriented comic websites. But be aware that accessing such content may have legal and ethical considerations depending on your region.