>>212538782
Gor is a series about a man who is kidnapped and taken to a counter earth (a planet that is constantly orbiting on our opposite side out of view, controlled by alien masters who basically just treat it as a zoo they watch over, the whole society is pretty rigid and there's a lot of slavery and a big part of the dynamic is slave women constantly getting clubbed and unga bunga'd caveman style, however by modern standards its pretty tame its usually just fade to black

so its a 60s/70s western harem isekai is basically it