I would also consider 'Re:Zero − Starting Life in Another World'. The main character has to constantly adapt and improve himself in a strange world, much like the protagonist in 'aiming to be an orc gentleman' light novel would. It has complex character development and an interesting world - building aspect.
There's 'Sword Art Online'. While not directly about an orc, it has a lot of the same elements of a character trying to navigate a complex virtual - like world, develop relationships, and grow in power. And also, 'Log Horizon' is quite good. It focuses on characters trapped in a game - like world and how they adapt, much like the main character in 'aiming to be an orc gentleman' might be adapting to the orc world.
The main feature is likely the unique perspective of the protagonist as an orc. It probably shows how he tries to be a 'gentleman' within the orc culture, which could be very different from human ideas of gentlemanly behavior.
Another great one could be 'Orc Princess: Rebirth'. In this story, the orc princess has to overcome great odds, from internal orc tribe disputes to external threats. It's a story of her transformation and how she becomes a symbol of hope for her people.
One could be 'Sword Art Online' light novels. It has an interesting virtual - world concept and engaging characters. Another similar one might be 'Log Horizon'. It also deals with characters trapped in a game - like world and has great world - building. And 'Overlord' light novels are also a good choice. It focuses on an overpowered character in a game - turned - real - world scenario.
One popular orc hero story light novel is 'The Orc King's Ascension'. It follows the journey of an orc who rises from a lowly position in his tribe to become a great leader. Another is 'Orc Hero: Trials of the Wild' which focuses on an orc's adventures in a dangerous wilderness and his growth as a hero.
One good light novel with orcs could be 'The Orc King's Ascent'. It details the journey of an orc from a low - ranked warrior to a powerful king. Another is 'Orcs in a New World' which shows how orcs adapt to a completely different and magical environment. And 'The Orcish Chronicles' which delves into the complex social structure and culture within the orc tribes.
Well, I haven't read many "orc eroica light novel" myself. However, you can try to find some well - known authors in the light novel field who might have dabbled in this type of story. Look for authors who are known for their unique world - building and character development, and then see if they have any works related to orcs in this genre.
One could be 'Spice and Wolf'. It also involves a merchant - the traveling merchant Kraft Lawrence. The story is filled with economic concepts, trading adventures, and an interesting relationship between the main characters, much like what might be expected in 'a good merchant light novel'.
Since I don't know the exact '8 six light novel', I can give you some general light novel suggestions. 'Re:Zero − Starting Life in Another World' is a great one. It has a unique time - loop concept which makes the story full of twists and turns. Another one is 'My Youth Romantic Comedy Is Wrong, As I Expected'. It delves deep into the complex relationships and personal growth of the characters.
I'm not sure specifically about '100 luck light novel'. But some popular light novels are 'Sword Art Online' and 'Overlord'. They have great storylines, interesting characters and immersive worlds.
There are several light novels that might be similar. 'Log Horizon' is one. It focuses on players trapped in a virtual world and how they build a society there. The world - building and character relationships are really interesting. Then there's 'That Time I Got Reincarnated as a Slime'. The main character, who is reincarnated as a slime, gradually builds his own kingdom in a fantasy world. 'Grimgar of Fantasy and Ash' also has a good story, showing the growth of a group of characters in a harsh fantasy environment.