I've tried various CPA programs with pretty targeted domain redirect traffic and it never worked out well. I always made more money simply parking the domain. However, your results may be different based on the quality of the traffic and the niche.
I'd find a few domains you own with targeted and a decent amount of traffic, search for available affiliate programs using a directory search such as https://www.offervault.com/ and redirect and see how it goes. If you find one that works, it should make way more than parking/Zeroclick.
Agree Ive done some tests and parking makes more than if you fwd. the traffic to the Adsense website in same category for instance. Zero click since it pays pennies, I would try to fwd. to some offers OR I would use DA, Skenzo for Yahoo ads.
ZeroClick is good for traffic from strong countries...
In this scenario you may get up to 5 times higher average RPM versus parking the same domains using PPC Google feed.
From my own experience.
Regarding affiliate programs...
This works only for highly targeted traffic.