Ezoic is a mediation platform, not an ad network. They provide you with access to the ad networks through their accounts and 'manage' your ads for you. It's not really an alternative as it's not an ad network, but it provides access to ad networks and monetization.
If you're looking for AdSense alternatives I made a list here: Top 100 AdSense alternatives
https://support.ezoic.com/support/s...4204-signing-up-with-ezoic-money-getting-paid - 3rd point.