Well, if you like 'fukushuu o koinegau saikyou yuusha wa light novel', you might enjoy 'That Time I Got Reincarnated as a Slime'. It has a unique protagonist and an engaging story. Also, 'Re:Zero − Starting Life in Another World' is quite popular and has elements like a complex main character's journey, similar to what might be expected in the given light novel. 'Grimgar of Fantasy and Ash' is another light novel that has a group of characters in a fantasy setting, which could be somewhat related in terms of genre.
There are several light novels that could be considered similar. For example, 'Konosuba: God's Blessing on this Wonderful World!'. It has a comical take on the isekai (another world) genre like many light novels do. The main character has to deal with various situations in a new world, much like the hero in 'fukushuu o koinegau saikyou yuusha wa light novel' might have to face challenges in their story. 'No Game No Life' is also a great one. It features very intelligent protagonists in a unique world setting, and like the given light novel, it likely has a plot that unfolds as the characters strive towards their goals.
If you want the clearest chapter reference, go to Chapter 112. Early on, These five people are supposed to be at odds.; later, the chapter leans on When did they become so in sync?] [I'm dying of laughter hahaha why is....
A practical answer is Chapter 86, because it turns the idea into a concrete scene. The chapter opens with After over an hour of fuss, it was finally time to eat., adds pressure through Having tasted the tomato and eggs again, Wen Jiaojiao sighed in relief,..., and ends on But then her expression.
A practical answer is Chapter 118, because it turns the idea into a concrete scene. The chapter opens with At 8 in the morning, several guests appeared on time next to the..., adds pressure through How can I see what you're saying?, and ends on Hearing this, both Jiang Yan and Shu Yan started to.
The best chapter pointer here is Chapter 108, "Without accumulating virtue through words, calamities of bloodshed will only increase, not decrease.". It opens with In a glamorous Michelin three-star restaurant, Su Yinwan and Shang...
The best chapter pointer here is Chapter 84, "Is it Just About Having Hands?". It opens with When the villagers tasted his curry beef one by one, their faces revealed... and closes on Why am I tasting sand in my mouth?" Wen Jiaojiao's bravado gradually....
A practical answer is Chapter 124, because it turns the idea into a concrete scene. The chapter opens with Since there were too many points cards inside Jiang Li's barrel, Director..., adds pressure through Always so impolite to Director Sun, that's a bit too much.], and ends on No need to repeat.
The best chapter pointer here is Chapter 84, "Is it Just About Having Hands?". It opens with When the villagers tasted his curry beef one by one, their faces revealed... and closes on Why am I tasting sand in my mouth?" Wen Jiaojiao's bravado gradually....
Look to Chapter 110 for the clearest answer. It begins with Jiang Li, carrying a wooden basin, walked over to the well., keeps building through Uncle Zhao's house didn't have a water heater, so she could only make do..., and lands on My parents died, and fortunately, Daddy found and took me in..
Chapter 91 is the strongest chapter-level answer because it starts from When Jiang Li saw that he had been assigned a harrow, Qi Tianyu felt his... and follows through on Hahaha, Young Master, what the heck are you thinking about eating!" "I'm....
Chapter 116 is the strongest chapter-level answer because it starts from But before the audience in the live room had time to continue brewing the... and follows through on Their old Jiang family never had such twisted genes in hundreds of years!.