Calum, please list the scopes that you are currently have trouble with.
I have the same pet peeve, like others have said I mount the scope further back and only buy scopes with eye relief of 4in or more. For me I ask that I have great relief in the bottom half of the zoom, the top end I can understand dealing with moving my eye closer. I myself do prefer any of the Leupolds as they seem to offer relief over 4in.