Easy and high competition doesn't work, no matter if blackhat or whitehat, there are no secret shortcuts to magically rank #1 for a keyword that could make you $1000 a day with a $300 one time investment. First of all, you need a decent moneysite with really good content, even a gazillion links won't rank a shitty site with 10 PLR articles. Next, you need some sort of concept how to get it ranked, just buying a few services and hoping they live up to their promises is certainly no strategy.
Invest time and money -> make money
Invest no time and no money -> no money