This isnt an harem though, unless you are into robots...
They do tend to all have similar looks now that you mention it
I gagree with what you are saying they all feel like the same damn thing. Just one question: I fave read all the mangas the you mentioned except tsukoyute, I can’t find anything in the searcher with that name so I wanted to know if is not in mangago
Isn't it "tsuyokute" not "tsukoyute"? It may just be a typo.
Almost every generic isekai harem manga male MC looks just like him.
except for slime, remonster, new gate and tsukoyute of course.
Its almost like reading the same story over and over again