One popular 'badass mc light novel' could be 'Overlord'. The main character in it is extremely powerful and has a very cool and dominant presence. He rules over his domain with an iron fist in a new and strange world.
Well, 'badass mc light novel' is a rather broad term. It could involve a main character who is not only physically strong but also mentally tough. In a light novel, this might translate to the mc having cool combat skills, being able to outwit opponents, and having a certain charm that attracts other characters. The plot might be driven by the mc's quest for something, like revenge, power, or knowledge, and along the way, they would face numerous trials that would test their badass nature.
Visiting your local bookstore or library is also a good idea. Ask the staff if they have any light novels with strong main characters. They might be able to point you to some hidden gems. Also, look for sections labeled 'new releases' or 'popular light novels' as there could be some great 'badass mc' ones there.
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.
One characteristic is their unique abilities. For example, in 'Overlord', the MC has abilities that are far beyond normal characters in the game - turned - real - world setting. Another is their rapid growth or high starting level. In 'Sword Art Online', Kirito starts with a good level of skills which he further hones.
Well, in light novels, 'Punching Bag MC' could be a character type. They might be the one that all the bad things seem to happen to. Maybe they have a weak personality at the start and others take advantage of them. It's a common trope to create drama and development in the story as the MC gradually overcomes these situations.
One great OP MC (Overpowered Main Character) fantasy light novel is 'Sword Art Online'. The main character, Kirito, is extremely skilled and powerful in the virtual world of Aincrad. Another is 'Overlord'. Momonga, the main character, is a very powerful magic caster in a game world that has become a reality. Also, 'That Time I Got Reincarnated as a Slime' is good. Rimuru starts as a slime but quickly gains incredible powers and builds his own nation.
Authors also use misdirection to create illusions. They might introduce a character or a plot element early on that seems important but is actually a distraction. For instance, a side character who seems to be a key to solving a mystery but is actually just a red herring, creating an illusion of a more complex mystery.
Powerful MCs often have unique skills or abilities. In light novels like 'My Hero Academia', the MC has a special quirk that no one else has. This unique ability is what sets them apart and allows them to be powerful in different situations, whether it's fighting villains or solving problems in their daily lives.