Before considering a coffee brand, it is important to pay attention to health and safety. Excessive caffeine intake may have adverse effects on the body, especially when combined with medication. Therefore, please consult a medical professional before trying any new dietary combination. If you are still interested, here are some popular coffee brands to consider: 1. **Lavazza** - This is a long-standing Italian coffee brand known for its rich flavor and high-quality beans. 2. **Illy** - Another Italian brand known for its high-quality Arabica coffee beans and rich flavor. 3. **Starbucks** - Although it is a chain store, Starbucks offers a variety of flavors and concentrations of coffee to meet consumers with different preferences. 4. **Blue Bottle** - Known for its freshness and unique brewing method, it is one of the representatives of boutique coffee. 5. **Peet's Coffee** - Offers rich roasted flavors and diverse options for those who like dark roasted coffee. The caffeine content of each coffee brand and variety may vary, so it is recommended that you choose the coffee that suits you based on your own preferences and tolerance. Drink with caution and pay attention to your body's reaction.