There are several processors that are commonly used in Android phones, and the best one for you will depend on your specific needs and preferences. Some popular processors for Android phones include:

1. Qualcomm Snapdragon: This is a popular processor used by many Android phone manufacturers. It offers good performance and efficiency, and is often found in high-end phones.
2. Samsung Exynos: Samsung’s own processor is used in many of its phones, particularly those sold outside of North America. It offers similar performance to the Snapdragon.
3. MediaTek: This is a popular budget processor used in many mid-range and budget Android phones. It offers good performance for the price, but may not be as powerful as the Snapdragon or Exynos.

Ultimately, the best processor for your Android phone will depend on your specific needs and budget. If you are looking for a high-end phone with top-of-the-line performance, a Snapdragon or Exynos processor may be the best choice. If you are on a budget, a phone with a MediaTek processor may be a good option.