What is a good red dot scope for my pellet rifle?

I just spent a week researching this on the internet. Go to Amazon.com before you buy any red dot scope. They have many of them and great pricing and if you spend $25 or more the shipping is free. You can look for a week and not find better pricing and shipping and many to choose from. Type"rifle sights" in the search bar in outdoor sporting. I bought 2 sights for my .223 then when I find out which one I like I will buy a more expensive one.