Third five:
Reincarnated into a Time-Loop Dungeon as a LVL100 Catgirl Chef!: Very short chapters.
https://www.royalroad.com/fiction/46...on-as-a-lvl100
Bioshifter: Girl dreams another world, becomes alien in this.
https://www.royalroad.com/fiction/59450/bioshifter
Micro: Small truck is isekied into human body, world has cultivation, magic, monsters.
https://www.royalroad.com/fiction/56...n-deckbuilding
Deadman: Fallout 3 ghoul protagonist, more or less Fallout world?
https://www.royalroad.com/fiction/51...st-apoc-litrpg
Fates Parallel: Cultivation, cat, rat, fox or dog people, but mostly fully human humans.
https://www.royalroad.com/fiction/39...ed-cultivation
Next five:
Forge of Destiny: Whimsical chinese cultivation with lots of manners, spirits and some fighting (which can get brutal when it happens).
https://www.royalroad.com/fiction/21...rge-of-destiny
Ar'Kendrithyst: Gay guy gets isekied with his adult kickass daughter, becomes a mage.
https://www.royalroad.com/fiction/26727/arkendrithyst
Inexorable Chaos: Pastiche. Guy gets hired as a superhero by gods. Like '60s TV Batman, OTT extravagant fun.
https://www.royalroad.com/fiction/22...exorable-chaos
Beneath the Dragon Eye Moons: Girl dies and is reborn elsewhere with magic.
https://www.royalroad.com/fiction/36...ragoneye-moons
REND: Psychopathic protagonist is a psychopath and knows it before getting infected by alien superpowers. Personally I am not 100% convinced by the description of psycopathy, but it's the first attempt I remember.
https://www.royalroad.com/fiction/32615/rend
Top five,
in no particular order:
Katalepsis: Lovecraft on LSD with lesbians, in England (mostly Yorkshire).
https://katalepsis.net/
Cinnamon Bun: A girl called Broccoli Bunch get's isekied and wins with hugs and cleaning. For bronies that don't hate rabbits.
https://www.royalroad.com/fiction/31...0/maps-and-art
The Wandering Inn: Pirateaba's magnum opus, there is nothing bigger.
https://wanderinginn.com/2016/07/27/1-00/
Only Villains Do That: Guy gets isekied to be The Dark Lord, doesn't wanna.
https://www.royalroad.com/fiction/40...llains-do-that
Pale: Wildbow's magical fantasy of Canada.
https://palewebserial.wordpress.com/...-run-cold-0-0/
I do like stories with fighting in them more than shows up here.