I'm not entirely sure specifically, but generally in a light novel with a shapeshifter MC, it could be centered around the MC's struggle to control their power. There could be a plot where they have to hide their identity from society because of prejudice against shapeshifters. And perhaps they are on a journey to discover the origin of their shapeshifting ability.
Since we don't have much information, the main character is surely the shapeshifter MC. There may be a sidekick or a mentor figure who helps the MC along their journey, but without reading the novel, it's hard to say for sure.
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.
I'm not aware of a specific 'mc as robot light novel' to base similar recommendations on. But some general robot - themed light novels could be interesting. For example, 'Full Metal Panic!' has elements related to mecha and robots, though the main character isn't exactly a robot but has a lot to do with them.
I'm not sure specifically as there could be many different stories with that title. It might be about the rebirth of a main character (MC) in a fictional world, perhaps with new powers or a second chance to change their fate.
One characteristic is the powerful magic abilities of the main character. For example, in 'A Certain Magical Index', the main character has unique psychic powers which can be considered as a form of magic. These abilities often lead to exciting battles and problem - solving situations.
The light novel 'Akame ga Kill!' also has an OP female MC in Akame. She is a highly trained assassin with a powerful teigu (a special weapon). Her skills in combat and stealth are top - notch, allowing her to take on much stronger opponents.
A 'skeleton mc light novel' could have a very interesting premise. The skeleton MC might be in a world full of magic and different races. It could be on a quest for power, knowledge, or revenge. For example, it might have been wronged in its past life and now, as a skeleton, it has the chance to seek justice. It may also interact with other characters, some of whom might be afraid of it because of its appearance, while others might see its potential and join forces with it.
I'm not sure specifically as there could be many 'evil mc' (evil main character) light novels out there. It might be about a protagonist with a dark or villainous nature and their adventures, conflicts, and growth in a fictional world.
I'm not sure specifically as there could be many 'smart mc' (smart main character) light novels. It might be about a protagonist with high intelligence who uses their wits to overcome various challenges in a fictional world, like solving mysteries or outsmarting enemies in a fantasy or sci - fi setting.
One such light novel could be 'Sword Art Online'. The main character Kirito is extremely powerful and often overcomes difficult challenges with ease.