Depending on the pre and how much coffee you have, and whether you'd be willing to substitute a stimmed pre for those, Ignit3 is a great suggestion. There's also Bloodshr3d if you'd prefer a powdered stimmed burner.
Alternately, Sup3r-Shred, Forslean, and Sup3r-7 would all be excellent to stack and are non-stim. All are single-compound products and are non-hormonal. Sup3r-Shred is a PPAR-Delta agonist, and will shift your body's fuel preference from glucose to lipids, as well as improve endurance. Forslean is forskolin 95% and will aid in body composition. Sup3r-7 is 7-keto, but uses S-SEDDS for delivery (this helps with the bioavailability issue, which is one of the big reasons that in the past, 7-keto without a delivery system like that hasn't always reviewed well).