I went from 215 lbs to 150 (with semi-regular exercise). When I switched from coffee to Matcha, I finally lost the belly fat that would not go away. Matcha has caffeine+theanine and EGCG which studies have shown can double your calorie burn. I use a frother with the matcha and water, with almond milk and Allulose (RX Sugar), which is the one of the only calorie-free sweeteners that has not been linked to heart issues.
These are what I use:

Now Foods L-Tyrosine 500mg, 300 Capsules - Non GMO - Supports Mental Alertness

Pure Encapsulations Rhodiola Rosea - Endurance & Fatigue Relief

Sencha Eveyrday Natural USDA Organic Matcha Green Tea Powder Rich Antioxidant Revitalizing