As of my last knowledge update in January 2022, I don't have specific information on the charging accessories released after that date, including those for the Google Pixel 7, Pixel 7 Pro, Pixel 6a, Pixel 6, and Pixel 6 Pro.
However, it's common for smartphones to use USB Type-C for charging, and they often support Power Delivery (PD) for fast charging. To find the appropriate charger plug for your Google Pixel device, you should look for a USB Type-C charger that supports Power Delivery and has an output of at least 20W, as you mentioned.
When purchasing a charger, you can consider the following:
Google Store:
Check the official Google Store or Google's recommended accessories for your specific Pixel model.
Manufacturer's Website:
Visit the official website of the manufacturer of the Google Pixel devices to find recommended accessories.
Third-Party Chargers:
Reputable third-party brands that specialize in charging accessories often offer USB Type-C chargers with Power Delivery support. Look for well-known brands with positive reviews.
USB Power Delivery (PD):
Ensure that the charger supports USB Power Delivery for fast and efficient charging.
Wattage:
Look for a charger with a wattage of at least 20W for fast charging.
Dual Port Charger:
If you need a dual port charger, make sure that both ports support the charging specifications required for your Pixel device.
Always check for compatibility with your specific Pixel model, as different Pixel devices may have different charging requirements. Also, verify any updates or changes in charging standards or accessories from Google or the device manufacturer, as my information might not reflect the latest developments post-January 2022.