SEO is like a roller coaster. Every 3-6 months Google will release a update for one of their algorithms. You constantly have to stay updated so you do not get penalized. If you’re able to stay up-to-date and optimize your website to their preference, you will strike gold. It is getting harder and harder to get ranked within Google. However, if you’re able to be within their preference and ranked,you will benefit greatly. The screenshot I attached represents a combination of low-high competitive keywords along with a list of long tail keywords. The leads were mostly Tier 1 traffic and had a high conversion rate.