I'm not sure of specific popular 'business light novel' titles off - hand. However, there could be some in the Japanese market as they are known for a wide variety of light novel genres.
I'm not sure if there are many well - known 'chemistry light novel' titles specifically. But there could be some niche ones out there.
I'm not aware of any specific 'prostitute isekai light novel' titles that are widely known. This might be a rather niche or inappropriate concept for a mainstream light novel, as it involves sensitive and unethical themes. Most light novels focus on more positive and ethical themes like adventure, magic, and friendship.
One popular title could be 'That Time I Got Reincarnated as a Slime'. It features an otherworldly adventure where the protagonist becomes a slime and builds his own 'business' of sorts in the new world, making allies and growing in power.
One popular 'farming light novel' could be 'Farming in Another World'.
The light novel 'Grimgar of Fantasy and Ash' can be included. The characters are in a harsh and unforgiving world, and there are numerous instances where their survival seems uncertain, similar to the concept of deathflags. Additionally, 'Konosuba: God's Blessing on this Wonderful World!' has comical yet dangerous situations for the characters that can be related to the idea of deathflags in a light - hearted way.
Well, there could be 'Dragonborn: Rise of the Legend'. It might tell the story of a dragonborn's journey to become a great hero, facing various challenges and making allies along the way. Maybe there are epic battles against powerful foes and the discovery of hidden powers. Another could be 'Dragonborn: Quest for the Lost Artifact' where the dragonborn embarks on a dangerous quest to find a very important and powerful artifact that could change the fate of their world.
Some popular ones might include 'Sword Art Online' which has elements that could be considered in the light novel genre. It's about a virtual reality MMORPG where players get trapped inside the game world.
One popular 'shinigami light novel' could be 'Death Note'. It features a shinigami named Ryuk who drops his Death Note into the human world, which then sets off a chain of events with the main character Light using it to try and create a new world order.
One popular light ero novel is 'High School DxD'. It combines elements of fantasy, action, and some romantic themes. The story follows Issei Hyoudou, a high school student who gets involved with devils and angels.
One popular're light novel' could be 'Sword Art Online'. It has an engaging story set in a virtual reality game world where the characters have to fight for their survival. Another is 'Re:Zero − Starting Life in Another World', which follows a young man who is transported to a fantasy world and has the unique ability to return by death, making for a very interesting plot with many twists.