Which are the top 10 best-selling tech products this year?

It is not possible for me to provide the most up-to-date information as the top-selling tech products may vary depending on the specific time frame and market. Additionally, sales rankings often change and are influenced by factors such as new product releases and consumer trends. However, some popular tech products in recent times have been:

1. Apple iPhone 12 series
2. Apple AirPods Pro
3. Samsung Galaxy S21 series
4. PlayStation 5 (Gaming Console)
5. Xbox Series X/S (Gaming Console)
6. Apple MacBook Pro/Air
7. Apple iPad (various models)
8. Amazon Echo Dot (Smart Speaker)
9. Fitbit Charge 4 (Fitness Tracker)
10. GoPro HERO9 Black (Action Camera)

Please note that these rankings may differ based on geographical location and may change as new products enter the market.