This can be anything from Hyperspace in Star Wars, Warp Drive in Star Trek, travel through the Warp in Warhammer 40k or anything else.
I’ve always liked “slow” FTL travel, where going a few light-years still takes a few days or so. I also really like travel through an alternate dimension like in 40k, Event Horizon, Witchspace in Elite Dangerous.
I wanna know your favorite versions, or do you prefer stories that obey the laws of known physics, like the Expanse or Rimworld?
I think it was the Old Man’s War series that had a really creative form of FTL travel that played off of the infinite multiverse theory.
Instead of traveling through space, they would jump into a parallel universe were everything was the exact same, except that their desired destination was closer to them and the same group of travelers were also jumping to a different verse at the same time.
It was clever, and also bugged the crap out of me