Here are some popular options for VPN on Android:

Opera VPN is a popular browser extension that provides secure browsing through encrypted connections. However, it is not available directly on Android devices. To use a VPN on Android, you can download third-party apps that mimic the features of Opera VPN.

1. NetBlock - A simple and fast VPN application that allows you to block access to your online accounts, websites, and devices. It also offers a variety of encryption options and 2FA.

2. Blocku - Another fast VPN application that offers fast connections, blocked access, and encryption. It also supports 2FA and has a user-friendly interface.

3. Blocku Pro - A more advanced VPN application that provides faster speeds, more comprehensive encryption options, and additional features like encrypted chat and file transfer.

To download any of these apps, you can visit the official Play Store in your Android browser and search for the app. Once you download it, you can install it and start using it for browsing and other activities.

However, it's important to note that these apps do not replicate all the features of Opera VPN, such as encrypted connections and 2FA. They are meant to provide a faster and safer browsing experience, but they cannot replace the security features of the original application. Always use these tools responsibly and ensure that your accounts and information are protected.