I like this recent webcomic page Minkowski Space where the ship jumps into a minowski space to escape (as common in sci-fi) which is just a representation of real 3d physical spacetime and offers no true escape from the bounds of the universal speed limit thus providing the comedic absurdity of...
Have you seen Projectrho's 'The Canonical List of StarDrives' Faster Than Light 2 - Atomic Rockets
I really like the [2.2.2] Alternative space (non-real space drives) variant of FTL. I think it got most if not all of the type of drives in fiction.