The choice of the best travel adapter depends on various factors, such as the countries you plan to visit, the number of devices you want to connect, and personal preferences. However, there are some popular travel adapters considered reliable and versatile:

1. Universal Travel Adapter: A universal travel adapter is designed to be compatible with different types of sockets around the world. These adapters often have interchangeable pins or slide systems that allow you to select the correct plug configuration for the specific country. They offer flexibility and are convenient for travelers going to different countries.

2. Travel Adapter Set: A travel adapter set contains multiple adapters for specific regions or countries. These sets often include the most common plug types and are handy if you are traveling to a specific region where a certain type of plug is commonly used.

3. USB Travel Adapter: A USB travel adapter has built-in USB ports, in addition to the sockets, so you can connect your devices directly and charge USB devices. This can be useful if you want to charge multiple devices at the same time.

When choosing the best travel adapter, it's important to check if it's compatible with the sockets in the countries you visit. In addition, it's helpful to read reviews and user ratings to assess the reliability and durability of the travel adapter.