Solo Leveling fits the bill, I'd say. I'm not sure what else you'd call the main character's story arc.

Shangri-La is enjoyable "numberslop" as Geoff Thiew, professional shitbag (his words, not mine) would put it.

Villainess Level 99. The comedy slaps 😆

Overlord is one of my favorites. The Cautious Hero is overly Cautious is also good.

Didn’t I say to make my abilities average

Mile is reincarnated to another world and asks god to be average.

She is given the median power of the weakest and strongest of the world. (As the strongest is so powerful she is 1000 times stronger than any other human)

Mile a girl who has no knowledge of the world and no common scense starts her new hunter (adventurer) life, talking to Nano machines, meeting new friends and failing miserable to be ‘normal’.

TsukiMichi - moonlit fantasy

Makoto is abducted from his world by a goddess due to a pack she had with his parents.

He is rejected for not being handsome enough and another god feels sorry for him and grants him powers.

He’s dumped at the edge of the world by the goddess where he starts his adventure, meeting powerful companions and building his own little world.

Eminence in shadow

Every school kids fantasy that they are special and unique with some hidden powers.

Except it is true? After reincarnating Cid is making up stories about an evil organisation and making up his own fantasies, to those around him they turn out to be true but to him he is just making it up and everyone else is just playing along or he misses what’s happening completely.

Chivalry of a Failed Knight really surprised me with how good it was (despite having some flaws)

Most trash tier isekai (affectionate). Did you have any examples of ones you particularly liked?

Hell Mode feels like a light-hearted version of Mushoku Tensei without all of the trauma.