Adsense or?

Adsense is the most reliable of all. Not sure why you would be looking at any alternatives

Adsense is the best network for making money. Actually Adsense is performance base network. So it is important that how much unique visitors your are getting and how many visitors are clicking on ads. There are some Ad networks are paying for impression. Most of these Ad networks pay high rate for USA and Canada traffic. You can try on these Ad networks
PropellerAds Media
Infolinks
BuySell Ads

your website cpc must be high to get higher adsense earnings.