a-ads is the best but not for everyone mellow ads you need 200K alexa rank so if you new dont go with them
Who gave Alexa the right to choose which website is good or not?
Themselves
I think that some opposition is needed.
I personally never gave importance to Alexa. It is very inaccurate. Although websites like Mellow Ads give importance to Alexa, making it has a fake pride!