In Sci-fi, space fighters often look like exotic versions of fighter jets: wing shape is often different but the general shape is most of the time kept.
However this seems unrealistic: the shape of fighter jets is almost always the same, because it is optimised for air-combat. In particular wings serve no purpose at all in space.
What would a realistic space fighter look like?
In terms of technology, I would like to stay as close as possible to what is possible today.