I'm actually one of those reader who enjoy Isekai. xd I know some good (for me) Isekai Manga that you'll enjoy. c:
Manga -Kenja no Mago -Tensei shitara Slime Datta Ken -Mushoku Tensei: Isekai Ittara Honki Dasu -Death March to the Parallel World Rhapsody -Tsuki ga Michibiku Isekai Douchuu -Isekai Tensei Soudouki -Dungeon Seeker -Murabito desu ga Nani ka?
The last 2 were more a dark fantasy so its a lil brutal.
That's people for you. Trusting one another, helping one another----- it's all a fantasy. Humans are creatures that will always betray.