One such light novel could be 'Dark Shadows Rising'. In this, the MC goes through intense torture physically and mentally.
You might want to check out 'The Nightmare Realm'. Here, the main character faces various forms of torture that shape their journey and character development. The torture is not just for shock value but plays a crucial role in the plot.
One such light novel could be 'Eternal Reign'. In this story, the main character gains immortality through a mysterious ancient artifact and embarks on adventures across different realms.
One such light novel could be 'The Villain's Ascension'. Here, the MC starts off as a villain and undergoes complex character development throughout the story.
I'd recommend 'Dragon's Fury'. The MC is a powerful dragon and the story is full of epic battles and magic.
One such light novel could be 'The Beast Player Erin'. The main character, Erin, has a unique connection with beasts and her perspective is quite different from a typical human one.
You could try 'The Summoner's World.' The main character here is a powerful summoner who faces all kinds of challenges and uncovers hidden secrets. The story is full of magic and action.
I'd recommend 'Cyborg Chronicles'. The MC is a cyborg and the story has a lot of action and adventure.
One such light novel could be 'The Solitary Journey'. In this story, the main character embarks on a solitary adventure, facing challenges and self-discovery all alone.
One such light novel could be 'Reincarnated as a Magic Emperor'. In this story, the main character is reborn in a magical world with new powers and adventures.
One such light novel could be 'The Fragile Mind's Journey'. In this story, the main character constantly battles anxiety while navigating a complex world.
It might be a historical light novel where the MC invents something revolutionary for that era, like a new farming tool or a method of transportation. Or it could be in a dystopian setting where the invention is a key to survival.