Based on your needs and budget, here are some smartphone recommendations:
1. OnePlus 9 5G - This phone has a powerful Snapdragon 888 processor and 65W fast charging support. It also has a 4500mAh battery capacity which should be enough to get you through a day of heavy usage. The camera is also decent with a 48MP main camera and 16MP front camera.
2. Samsung Galaxy S21 5G - Another flagship phone with a powerful Snapdragon 888 processor and 25W fast charging support. The battery capacity is slightly smaller at 4000mAh but should still be sufficient. The camera quality is also great with a 64MP main camera and 10MP front camera.
3. Xiaomi Mi 11 5G - This phone has a Snapdragon 888 processor and 55W fast charging support. It also has a large 4600mAh battery capacity for extended usage. The camera is also impressive with a 108MP main camera and 20MP front camera.
All three phones mentioned above are great for gaming and should provide a smooth and speedy experience. They also support 5G connectivity which is a plus. Choose the one that suits your needs and budget the most.