There isn't a foolproof place.
You've gotta make sure you base your choice on the traffic type you're looking for.
First, you need to think about the vertical you wanna explore.
Is it Adult or Mainstream?
Then, you must take some time to understand which offer type you should promote.
Moreover, you must think about whether to buy on websites (directly from a website owner), or from an ad network/DSP, which is the middle man that sells you ad space on websites.
If you're a beginner, we suggest you go for an ad network, since a DSP is a more advanced option!
There are plenty of ad networks. Some are more specialized on a particular vertical or ad format; others are a bit more general.
When choosing an ad network, here's what you've gotta remember: the product/service you’re promoting, the parameters available for you to manage, the existence of a support service, and the need to have great analytical reports provided by the platform.
We already have more than a hundred Traffic Source templates on our Tracker.
You're free to use them.
All their tokens will be automatically added on your Campaign URL.