What is possible is that you can display the top 10 products based on their average reviews but you're not able to display the top 10 reviews across a category.
Hey, I was wondering if I use the method that you have mentioned, how can I show that there are no products with review in that particular category, if it is the case. I think I will be able to skip those products which doesn't has, reviews by using condition. But if none of the product has condition, how can I show the feedback message that there are no products with reviews .
Unfortunately our forums is generally closed on the weekends so I only just got to see your response.
"I was wondering if I use the method that you have mentioned, how can I show that there are no products with review in that particular category, if it is the case."
Firstly I was thinking that you will need to have a query filter to filter the view listing out the posts by a particular category.
To show the products with no review you will perhaps need to use the custom field "_wc_average_rating" since this will return a numeric value.