You should retake the GRE after a rigorous preparation (at least 4 to even 8 hours per day for 15 to 30 days solving problems in the multitude of practice tests available). Anyway, there are indeed top 100 schools with interesting programs which apparently don't ask for GREs, one of them seems to be the
PhD in Business Administration and Quantitative Methods in Carlos III (Spain). If you choose to apply with your current GRE anyway, you should take a look at past profiles and where they applied to, I remember to have seen some applicants with low GREs there.