barely anythings fits all your criteria so this is a list of good enough stuff, no loli and no harem things which don't overly sexualize women
little girl, shovel and the evil eye pretty good and fits all but I don't think its going to get continued for long since the LN got dropped at the point the manga is currently at
man isekaid into another world without skills isekaid after winning the lotery and deciding to run away from society, doesn't really dwelve into the "dark parts" of the world but its good and the mc isn't dumb
isekai munchkin guy gets isekaid by an evil goddess, steals her world book (kinda like a master playbook for d&d) and then sets off to try and find his sister who also got isekaid
going against god's will isekai (title too long and non specific) guy is getting isekaid as well as his guild members and a bunch of other people but figures out that their thoughts are being manipulated by god in the last second and changes his skills and goes alone (no dark parts of the world so far)
karate isekai guy gets isekaid when trying to stop a truck with karate, refuses the goddess' blessing and simply goes to hone his skills (no dark parts, might include some sexualisation)
karate survivor normal guy gets isekaid into a fairly harsh world and has to try his best to survive
My Instant Death Ability is So Overpowered, No One in This Other World Stands a Chance Against It class gets isekaid and almost everyone gets abilities and those who don't get left behind in the bus, mc is in this second group but he has an ability which isn't tied to this one (instant death), might have suggestive stuff and mc might be kinda dumb but its good enough to be recommended
my death flag's show no sign of ending typical otome game reincarnation into the bad guy with mc trying not to die but still attempting to fulfill the job of the bad guy to prevent the world from ending
Isekai Shikkaku 19th century mc is about to commit suicide with his lover when they get isekaid by truck-kun, technically harem but the mc just wants to die and is op in some kinda random ways. doesn't kill himself when he learns that his lover might also be in this other world and "goes on an adventure" with his summoner to try and find her, world is filled with other isekaid people who turned evil
speedrun isekai more on the comedy side, speed runner gets isekaid into a game and finishes it in record time but he bugs the world and decides to try to 100% it to reset it to a non-bugged state
not isekai
piece of shit hero mc is a cunt who only thinks about getting married to a rich woman and living off of her, his childhood friend is deemed the saint and then he becomes the hero after corrupting the holy sword
let this grieving soul retire same vibe as eminence in shadow except the mc isn't chunny and just misunderstood
unwanted undead adventurer guy dies but then becomes a skeleton, figures out that he can evolve by levelling up so he tries to become something humanlike again
why doesn't anyone remember my world in a world after a hero defeated all the enemies of humanity and sealed them the mc works as a soldier patrolling all the graveyards in case any monster escapes them, however the past somehow changes and he finds himself in the same world but with the hero having never existed and him being the only one that remembers his world (since you want interesting stuff putting this here even if it does go against some of your dislikes)
since you have kinda "strict" requirements just listed a few that I've read which have a fair amount of chapters, I consider to be good and meet "most" of them with some that are different
if the very brief description attracts your attention you can just open them and check if the first chapter is to your liking
hopefully at least one from this list will be something you haven't read and good enough
accidentally sent so editing a bunch of times
