You could probably sit nearish the Mass Relays, which in the systems without inhabited worlds would be a good plan, as long as you don't get int he way of traffic control of course.

In systems with inhabited worlds though, you'd likely get more out of sitting in near orbit where shuttles from the planet can easily get to you, as a fair bit of Mass Relay traffic isn't too interested in stopping off mid journey, though there will always be some of course.