You might like 'Supreme Legacy'. Here, the main character is OP due to a special inheritance or a hidden power that emerges, making them nearly unbeatable.
There are various types. Sometimes it's a sci-fi light novel where the MC has advanced technology or superhuman abilities. Another could be a cultivation-based one where the MC rapidly gains immense power through training and rare encounters.
One such light novel could be 'The Kingdom Builder's Ascension'. In this story, the OP main character uses their unique skills and strategies to establish a mighty kingdom.
I'd recommend 'Divine Might Chronicles'. Here, the main character is born with god-like abilities and dominates from the get-go. The plot mainly focuses on how they use these powers to face various challenges.
I'd recommend 'The Supreme Hero's Conquest'. The MC is incredibly powerful and has his romantic encounters. The story is exciting and keeps you hooked.
One popular one is 'Sword Art Online'. The main character Kirito is extremely overpowered in the virtual world of Aincrad. He has incredible sword skills and can adapt quickly to various challenges.
Another aspect is prior knowledge or experience. In some light novels, the MC is reincarnated or transferred from another world. Like in 'Konosuba', Kazuma has knowledge from his previous life which he uses to his advantage in the new world, and this knowledge combined with his unique skills makes him overpowered in certain situations.
Well, take 'That Time I Got Reincarnated as a Slime'. Rimuru's overpowered nature means he can easily overcome most physical threats. This allows the plot to focus more on political intrigue, building his own kingdom, and diplomatic relations. His power also attracts other powerful beings, either as allies or enemies, which then spins off into various plot threads. So, an overpowered character can shift the focus of the plot from basic survival or power - gaining to more complex aspects like leadership and international relations within the story world.
One popular OP MC light novel is 'Sword Art Online'. The main character, Kirito, is extremely powerful in the virtual world of Aincrad. He has incredible sword skills and the ability to adapt quickly to various challenges within the game world.