By comparison, coffee typically contains between 77 — 150 mg of caffeine per cup (39). (healthline.com)
If you are feeling extra tired and are experiencing lower energy levels you may want to choose a lighter roast since they typically contain more caffeine per cup. (personaltraining4u.net)
Green tea and white tea contain the most EGCG and luckily, they contain the least caffeine per cup: (supernaturalacnetreatment.com)