I am wondering what CPA offers work the best for SEO traffic. Also, what CPA offers are easier to get ranked on Google for Keywords with. Thanks!
It really depends on the niche which you choose. The trick is to find high demand offers, choose keywords which have a decent search volume but aren't too high competition.
Your questions are kind of contradictory. The best paying CPA programs will be the most appealing to webmasters. This means they'll be the most competitive and harder to achieve top rankings. Likewise, the lower paying CPA programs will be less competitive and will be easier to rank. The key is to choose your strategy and stick with it. You can choose the less competive approach, but it may take several websites (across several less competitve niches) to gain the same type of return. Or, you could go right after the highest paying (and most competitve) niches and hope to strike it big with one or two websites... Personally, I've done really well with competitive niches such as "payday loans" and "debt consolidation" (see links in sig)...